diff --git a/examples/item/defaultCombos/demo/circle.js b/examples/item/defaultCombos/demo/circle.js
index 74e39fbb8d..f83077f591 100644
--- a/examples/item/defaultCombos/demo/circle.js
+++ b/examples/item/defaultCombos/demo/circle.js
@@ -33,34 +33,34 @@ const graph = new G6.Graph({
   fitCenter: true,
   // Set groupByTypes to false to get rendering result with reasonable visual zIndex for combos
   groupByTypes: false,
-  defaultCombo: {
-    type: 'circle',
-    style: {
-      lineWidth: 1,
-    },
-    labelCfg: {
-      refY: 10,
-      position: 'top',
-      style: {
-        fontSize: 18,
-      },
-    },
-  },
   modes: {
     default: ['drag-canvas', 'drag-node', 'drag-combo', 'collapse-expand-combo'],
   },
-  comboStateStyles: {
-    // the style configurations for the hover state on the combo
-    hover: {
-      lineWidth: 3,
-    },
-  },
-  nodeStateStyles: {
-    // the hover configurations for the hover state on the node
-    hover: {
-      lineWidth: 3,
+  defaultCombo: {
+    type: 'circle',
+    /* style for the keyShape */
+    // style: {
+    //   lineWidth: 1,
+    // },
+    labelCfg: {
+      /* label's offset to the keyShape */
+      // refY: 10,
+      /* label's position, options: center, top, bottom, left, right */
+      position: 'top',
+      /* label's style */
+      // style: {
+      //   fontSize: 18,
+      // },
     },
   },
+  /* styles for different states, there are built-in styles for states: active, inactive, selected, highlight, disable */
+  /* you can extend it or override it as you want */
+  // comboStateStyles: {
+  //   active: {
+  //     fill: '#f00',
+  //     opacity: 0.5
+  //   },
+  // },
 });
 
 graph.data(data);
@@ -68,10 +68,19 @@ graph.render();
 
 graph.on('combo:mouseenter', (evt) => {
   const { item } = evt;
-  graph.setItemState(item, 'hover', true);
+  graph.setItemState(item, 'active', true);
 });
 
 graph.on('combo:mouseleave', (evt) => {
   const { item } = evt;
-  graph.setItemState(item, 'hover', false);
+  graph.setItemState(item, 'active', false);
+});
+graph.on('combo:click', (evt) => {
+  const { item } = evt;
+  graph.setItemState(item, 'selected', true);
+});
+graph.on('canvas:click', (evt) => {
+  graph.getCombos().forEach(combo => {
+    graph.clearItemStates(combo);
+  });
 });
diff --git a/examples/item/defaultCombos/demo/rect.js b/examples/item/defaultCombos/demo/rect.js
index 14666d3496..3529aca0a0 100644
--- a/examples/item/defaultCombos/demo/rect.js
+++ b/examples/item/defaultCombos/demo/rect.js
@@ -33,35 +33,36 @@ const graph = new G6.Graph({
   fitCenter: true,
   // Set groupByTypes to false to get rendering result with reasonable visual zIndex for combos
   groupByTypes: false,
-  defaultCombo: {
-    type: 'rect',
-    size: [50, 50], // Combo 的最小大小
-    style: {
-      lineWidth: 1,
-    },
-    labelCfg: {
-      refY: 10,
-      position: 'top',
-      style: {
-        fontSize: 18,
-      },
-    },
-  },
   modes: {
     default: ['drag-canvas', 'drag-node', 'drag-combo', 'collapse-expand-combo'],
   },
-  comboStateStyles: {
-    // the style configurations for the hover state on the combo
-    hover: {
-      lineWidth: 3,
-    },
-  },
-  nodeStateStyles: {
-    // the hover configurations for the hover state on the node
-    hover: {
-      lineWidth: 3,
+  defaultCombo: {
+    type: 'rect',
+    /* The minimum size of the combo. combo 最小大小 */
+    size: [50, 50],
+    /* style for the keyShape */
+    // style: {
+    //   lineWidth: 1,
+    // },
+    labelCfg: {
+      /* label's offset to the keyShape */
+      // refY: 10,
+      /* label's position, options: center, top, bottom, left, right */
+      position: 'top',
+      /* label's style */
+      // style: {
+      //   fontSize: 18,
+      // },
     },
   },
+  /* styles for different states, there are built-in styles for states: active, inactive, selected, highlight, disable */
+  /* you can extend it or override it as you want */
+  // comboStateStyles: {
+  //   active: {
+  //     fill: '#f00',
+  //     opacity: 0.5
+  //   },
+  // },
 });
 
 graph.data(data);
@@ -69,10 +70,19 @@ graph.render();
 
 graph.on('combo:mouseenter', (evt) => {
   const { item } = evt;
-  graph.setItemState(item, 'hover', true);
+  graph.setItemState(item, 'active', true);
 });
 
 graph.on('combo:mouseleave', (evt) => {
   const { item } = evt;
-  graph.setItemState(item, 'hover', false);
+  graph.setItemState(item, 'active', false);
+});
+graph.on('combo:click', (evt) => {
+  const { item } = evt;
+  graph.setItemState(item, 'selected', true);
+});
+graph.on('canvas:click', (evt) => {
+  graph.getCombos().forEach(combo => {
+    graph.clearItemStates(combo);
+  });
 });
diff --git a/gatsby-browser.js b/gatsby-browser.js
index d314bea4b2..de19224340 100644
--- a/gatsby-browser.js
+++ b/gatsby-browser.js
@@ -1,4 +1,4 @@
-// window.g6 = require('./src/index.ts'); // import the source for debugging
-window.g6 = require('./dist/g6.min.js'); // import the package for webworker
+window.g6 = require('./src/index.ts'); // import the source for debugging
+// window.g6 = require('./dist/g6.min.js'); // import the package for webworker
 window.insertCss = require('insert-css');
 window.Chart = require('@antv/chart-node-g6');
diff --git a/src/global.ts b/src/global.ts
index ad22bb6b5a..a6f19a4d8c 100644
--- a/src/global.ts
+++ b/src/global.ts
@@ -72,9 +72,6 @@ export default {
       fill: colorSet.inactiveFill,
       stroke: colorSet.inactiveStroke,
       lineWidth: 1,
-      'text-shape': {
-        fontWeight: 500
-      }
     },
     disable: {
       fill: colorSet.disableFill,
@@ -87,21 +84,55 @@ export default {
       fill: textColor,
       textAlign: 'center',
       textBaseline: 'middle',
+      fontSize: 12,
     },
   },
   defaultEdge: {
     type: 'line',
     style: {
-      stroke: disableColor,
+      stroke: colorSet.edgeMainStroke,
+      lineAppendWidth: 4,
     },
     size: 1,
-    color: disableColor,
+    color: colorSet.edgeMainStroke,
+  },
+  // 边应用状态后的样式，默认仅提供 active、selected、highlight、inactive、disable，用户可以自己扩展
+  edgeStateStyles: {
+    active: {
+      stroke: colorSet.edgeActiveStroke,
+      lineWidth: 1,
+    },
+    selected: {
+      stroke: colorSet.edgeSelectedStroke,
+      lineWidth: 2,
+      shadowColor: colorSet.edgeSelectedStroke,
+      shadowBlur: 10,
+      'text-shape': {
+        fontWeight: 500
+      },
+    },
+    highlight: {
+      stroke: colorSet.edgeHighlightStroke,
+      lineWidth: 2,
+      'text-shape': {
+        fontWeight: 500
+      }
+    },
+    inactive: {
+      stroke: colorSet.edgeInactiveStroke,
+      lineWidth: 1,
+    },
+    disable: {
+      stroke: colorSet.edgeDisableStroke,
+      lineWidth: 1,
+    },
   },
   comboLabel: {
     style: {
       fill: textColor,
       // textAlign: 'center',
       textBaseline: 'middle',
+      fontSize: 12,
     },
     refY: 10, // Combo 的默认文本不居中时的偏移量
     refX: 10, // Combo 的默认文本不居中时的偏移量
@@ -109,18 +140,53 @@ export default {
   defaultCombo: {
     type: 'circle',
     style: {
-      fill: '#F3F9FF',
+      fill: colorSet.comboMainFill,
       lineWidth: 1,
-      stroke: '#A3B1BF',
-      opacity: 0.8,
+      stroke: colorSet.comboMainStroke,
       r: 5,
       width: 20,
       height: 10,
     },
     size: [20, 5],
-    color: '#A3B1BF',
+    color: colorSet.comboMainStroke,
     padding: [25, 20, 15, 20],
   },
+  // combo 应用状态后的样式，默认仅提供 active、selected、highlight、inactive、disable，用户可以自己扩展
+  comboStateStyles: {
+    active: {
+      stroke: colorSet.comboActiveStroke,
+      lineWidth: 1,
+      fill: colorSet.comboActiveFill,
+    },
+    selected: {
+      stroke: colorSet.comboSelectedStroke,
+      lineWidth: 2,
+      fill: colorSet.comboSelectedFill,
+      shadowColor: colorSet.comboSelectedStroke,
+      shadowBlur: 10,
+      'text-shape': {
+        fontWeight: 500
+      },
+    },
+    highlight: {
+      stroke: colorSet.comboHighlightStroke,
+      lineWidth: 2,
+      fill: colorSet.comboHighlightFill,
+      'text-shape': {
+        fontWeight: 500
+      }
+    },
+    inactive: {
+      stroke: colorSet.comboInactiveStroke,
+      fill: colorSet.comboInactiveFill,
+      lineWidth: 1,
+    },
+    disable: {
+      stroke: colorSet.comboDisableStroke,
+      fill: colorSet.comboDisableFill,
+      lineWidth: 1,
+    },
+  },
   delegateStyle: {
     fill: '#F3F9FF',
     fillOpacity: 0.5,
diff --git a/src/item/combo.ts b/src/item/combo.ts
index 8c4c145ace..d91e0db527 100644
--- a/src/item/combo.ts
+++ b/src/item/combo.ts
@@ -24,7 +24,7 @@ export default class Combo extends Node implements ICombo {
   public getShapeCfg(model: ComboConfig): ComboConfig {
     const styles = this.get('styles');
     const bbox = this.get('bbox');
-    if (styles) {
+    if (styles && bbox) {
       // merge graph的item样式与数据模型中的样式
       const newModel = model;
       const size = {
diff --git a/src/item/item.ts b/src/item/item.ts
index 801a9168a9..8b2f28061c 100644
--- a/src/item/item.ts
+++ b/src/item/item.ts
@@ -101,8 +101,10 @@ export default class ItemBase implements IItemBase {
     const model = this.get('model');
     let { id } = model;
 
+    const itemType = this.get('type');
+
     if (!id) {
-      id = uniqueId(this.get('type'));
+      id = uniqueId(itemType);
       this.get('model').id = id;
     }
 
@@ -117,7 +119,7 @@ export default class ItemBase implements IItemBase {
     this.init();
     this.draw();
 
-    const shapeType = (model.shape as string) || (model.type as string) || 'circle';
+    const shapeType = (model.shape as string) || (model.type as string) || (itemType === 'edge' ? 'line' : 'circle');
     const shapeFactory = this.get('shapeFactory');
     if (shapeFactory && shapeFactory[shapeType]) {
       const { options } = shapeFactory[shapeType];
@@ -384,7 +386,6 @@ export default class ItemBase implements IItemBase {
   public setState(state: string, value: string | boolean) {
     const states: string[] = this.get('states');
     const shapeFactory = this.get('shapeFactory');
-    // debugger
     let stateName = state;
     let filterStateName = state;
     if (isString(value)) {
diff --git a/src/shape/combo.ts b/src/shape/combo.ts
index a387907cb2..a717ca908e 100644
--- a/src/shape/combo.ts
+++ b/src/shape/combo.ts
@@ -27,6 +27,23 @@ const singleCombo: ShapeOptions = {
    */
   refX: Global.comboLabel.refX,
   refY: Global.comboLabel.refY,
+
+  options: {
+    style: {
+      stroke: Global.defaultCombo.style.stroke,
+      fill: Global.defaultCombo.style.fill,
+      lineWidth: Global.defaultCombo.style.lineWidth
+    },
+    labelCfg: {
+      style: {
+        fill: Global.comboLabel.style.fill,
+        fontSize: Global.comboLabel.style.fontSize,
+      },
+    },
+    stateStyles: {
+      ...Global.comboStateStyles
+    }
+  },
   /**
    * 获取 Combo 宽高
    * @internal 返回 Combo 的大小，以 [width, height] 的方式维护
diff --git a/src/shape/combos/circle.ts b/src/shape/combos/circle.ts
index f177a85e55..cf34ddd175 100644
--- a/src/shape/combos/circle.ts
+++ b/src/shape/combos/circle.ts
@@ -19,15 +19,18 @@ Shape.registerCombo(
         stroke: Global.defaultCombo.style.stroke,
         fill: Global.defaultCombo.style.fill,
         lineWidth: Global.defaultCombo.style.lineWidth,
-        opacity: 0.8,
       },
       labelCfg: {
         style: {
-          fill: '#595959',
+          fill: Global.comboLabel.style.fill,
+          fontSize: Global.comboLabel.style.fontSize,
         },
         refX: 0,
         refY: 0,
       },
+      stateStyles: {
+        ...Global.comboStateStyles
+      }
     },
     shapeType: 'circle',
     // 文本位置
diff --git a/src/shape/combos/rect.ts b/src/shape/combos/rect.ts
index 4c65f12ae2..64f041a9dd 100644
--- a/src/shape/combos/rect.ts
+++ b/src/shape/combos/rect.ts
@@ -18,13 +18,13 @@ Shape.registerCombo(
         radius: 0,
         stroke: Global.defaultCombo.style.stroke,
         fill: Global.defaultCombo.style.fill,
-        lineWidth: Global.defaultCombo.style.lineWidth,
-        fillOpacity: 1,
+        lineWidth: Global.defaultCombo.style.lineWidth
       },
       // 文本样式配置
       labelCfg: {
         style: {
-          fill: '#595959',
+          fill: Global.comboLabel.style.fill,
+          fontSize: Global.comboLabel.style.fontSize,
         },
       },
       // 连接点，默认为左右
@@ -32,6 +32,9 @@ Shape.registerCombo(
         [0, 0.5],
         [1, 0.5],
       ],
+      stateStyles: {
+        ...Global.comboStateStyles
+      }
     },
     shapeType: 'rect',
     labelPosition: 'top',
diff --git a/src/shape/edge.ts b/src/shape/edge.ts
index fd3c54b920..bf55c4d886 100644
--- a/src/shape/edge.ts
+++ b/src/shape/edge.ts
@@ -55,6 +55,26 @@ const singleEdge: ShapeOptions = {
    * @type {Boolean}
    */
   labelAutoRotate: false,
+
+  // 自定义边时的配置
+  options: {
+    size: Global.defaultEdge.size,
+    style: {
+      x: 0,
+      y: 0,
+      stroke: Global.defaultEdge.style.stroke,
+      lineWidth: Global.defaultEdge.style.lineWidth
+    },
+    labelCfg: {
+      style: {
+        fill: Global.edgeLabel.style.fill,
+        fontSize: Global.edgeLabel.style.fontSize,
+      },
+    },
+    stateStyles: {
+      ...Global.edgeStateStyles
+    }
+  },
   /**
    * 获取边的 path
    * @internal 供扩展的边覆盖
diff --git a/src/shape/edges/polyline.ts b/src/shape/edges/polyline.ts
index da24944d7f..3d01e038cc 100644
--- a/src/shape/edges/polyline.ts
+++ b/src/shape/edges/polyline.ts
@@ -15,16 +15,20 @@ Shape.registerEdge(
   {
     options: {
       color: Global.defaultEdge.color,
+      size: Global.defaultEdge.size,
       style: {
         radius: 0,
         offset: 15,
         x: 0,
         y: 0,
+        stroke: Global.defaultEdge.style.stroke,
+        lineWidth: Global.defaultEdge.style.lineWidth
       },
       // 文本样式配置
       labelCfg: {
         style: {
           fill: Global.edgeLabel.style.fill,
+          fontSize: Global.edgeLabel.style.fontSize,
         },
       },
       routeCfg: {
@@ -33,6 +37,9 @@ Shape.registerEdge(
         maximumLoops: 1000,
         gridSize: 10, // 指定精度
       },
+      stateStyles: {
+        ...Global.edgeStateStyles
+      }
     },
     shapeType: 'polyline',
     // 文本位置
diff --git a/src/util/color.ts b/src/util/color.ts
index 7449d1596f..9450d5d801 100644
--- a/src/util/color.ts
+++ b/src/util/color.ts
@@ -41,6 +41,34 @@ export const getColorsWithSubjectColor = (subjectColor, backColor = '#fff', disa
     highlightFill: mixColor(backColor, subjectColor, 0.2).rgb().toString(),
 
     disableStroke: mixColor(backColor, disableColor, 0.3).rgb().toString(),
-    disableFill: mixColor(backColor, disableColor, 0.05).rgb().toString()
+    disableFill: mixColor(backColor, disableColor, 0.05).rgb().toString(),
+
+
+    edgeMainStroke: disableColor,
+    edgeActiveStroke: subjectColor,
+    edgeInactiveStroke: mixColor(backColor, disableColor, 0.2).rgb().toString(),
+    edgeSelectedStroke: subjectColor,
+    edgeHighlightStroke: subjectColor,
+    edgeDisableStroke: mixColor(backColor, disableColor, 0.1).rgb().toString(),
+
+
+    comboMainStroke: mixColor(backColor, disableColor, 0.3).rgb().toString(),
+    comboMainFill: mixColor(backColor, disableColor, 0.02).rgb().toString(),
+
+    comboActiveStroke: subjectColor,
+    comboActiveFill: lightSubject,
+
+    comboInactiveStroke: mixColor(backColor, disableColor, 0.3).rgb().toString(),
+    comboInactiveFill: mixColor(backColor, disableColor, 0.02).rgb().toString(),
+
+    comboSelectedStroke: subjectColor,
+    comboSelectedFill: mixColor(backColor, disableColor, 0.02).rgb().toString(),
+
+    comboHighlightStroke: 'rgb(53, 119, 222)', // TODO: how to generate it ???
+    comboHighlightFill: mixColor(backColor, disableColor, 0.02).rgb().toString(),
+
+    comboDisableStroke: mixColor(backColor, disableColor, 0.2).rgb().toString(),
+    comboDisableFill: mixColor(backColor, disableColor, 0.05).rgb().toString(),
+
   }
 }
\ No newline at end of file
diff --git a/tests/unit/graph/controller/state-spec.ts b/tests/unit/graph/controller/state-spec.ts
index d268902d63..d8d4e5a481 100644
--- a/tests/unit/graph/controller/state-spec.ts
+++ b/tests/unit/graph/controller/state-spec.ts
@@ -51,7 +51,7 @@ describe('graph state controller', () => {
     setTimeout(() => {
       expect(graphCount).toBe(1);
       done();
-    }, 16);
+    }, 100);
   });
 
   it('state with activate-relations', done => {
diff --git a/tests/unit/graph/graph-spec.ts b/tests/unit/graph/graph-spec.ts
index 9cc68f60c6..68b7a030c0 100644
--- a/tests/unit/graph/graph-spec.ts
+++ b/tests/unit/graph/graph-spec.ts
@@ -1208,12 +1208,12 @@ describe('mapper fn', () => {
     expect(keyShape.attr('fillOpacity')).toEqual(1);
 
     graph.setItemState(edge, 'selected', true);
-    expect(keyShape.attr('stroke')).toEqual('rgb(150, 150, 150)');
+    expect(keyShape.attr('stroke')).toEqual('rgb(95, 149, 255)');
     expect(keyShape.attr('lineWidth')).toEqual(2);
     expect(keyShape.attr('fillOpacity')).toEqual(1);
 
     graph.setItemState(edge, 'custom', true);
-    expect(keyShape.attr('stroke')).toEqual('rgb(150, 150, 150)');
+    expect(keyShape.attr('stroke')).toEqual('rgb(95, 149, 255)');
     expect(keyShape.attr('lineWidth')).toEqual(2);
     expect(keyShape.attr('opacity')).toEqual(0.5);
   });
diff --git a/tests/unit/graph/svg-spec.ts b/tests/unit/graph/svg-spec.ts
index 77f6c15880..cef0ac2a51 100644
--- a/tests/unit/graph/svg-spec.ts
+++ b/tests/unit/graph/svg-spec.ts
@@ -1290,7 +1290,7 @@ describe('behaviors', () => {
     expect(unrelativeNodeKeyShape.attr('opacity')).toBe(0.1);
     const unrelativeEdge = graph.getEdges()[1];
     const unrelativeEdgeKeyShape = unrelativeEdge.get('group').get('children')[0];
-    expect(unrelativeEdgeKeyShape.attr('stroke')).toBe('rgb(150, 150, 150)');
+    expect(unrelativeEdgeKeyShape.attr('stroke')).toBe('rgb(234, 234, 234)');
     expect(unrelativeEdgeKeyShape.attr('opacity')).toBe(0.1);
 
     graph.emit('node:mouseleave', { item });
diff --git a/tests/unit/shape/edge-spec.ts b/tests/unit/shape/edge-spec.ts
index e86b13f574..c9e28488cd 100644
--- a/tests/unit/shape/edge-spec.ts
+++ b/tests/unit/shape/edge-spec.ts
@@ -523,12 +523,13 @@ describe('shape edge test', () => {
       const edge = graph.getEdges()[0];
       const path = edge.get('group').get('children')[0];
       let bbox = path.getBBox();
-      expect(bbox.minX).toEqual(91.60845891791658);
+      console.log(bbox);
+      expect(bbox.minX).toEqual(89.60845891791658);
       graph.emit('node:dragstart', { x: 100, y: 100, item: node });
       graph.emit('node:drag', { x: 200, y: 200, item: node });
       graph.emit('node:dragend', { x: 200, y: 200, item: node });
       bbox = path.getBBox();
-      expect(bbox.minX).toEqual(191.6084589179166);
+      expect(bbox.minX).toEqual(189.6084589179166);
     });
 
     it('clear', () => {
diff --git a/tests/unit/state/edge-state-spec.ts b/tests/unit/state/edge-state-spec.ts
index 6497438a23..aa706d35ec 100644
--- a/tests/unit/state/edge-state-spec.ts
+++ b/tests/unit/state/edge-state-spec.ts
@@ -141,6 +141,7 @@ describe('graph edge states', () => {
           shadowBlur: 10,
           shadowOffsetX: 10,
           shadowOffsetY: 20,
+          lineWidth: 10
         },
       },
       defaultEdge: {