diff --git a/demos/edge-animate.html b/demos/edge-animate.html
index 530dd0e926..4f25a988f6 100644
--- a/demos/edge-animate.html
+++ b/demos/edge-animate.html
@@ -107,7 +107,7 @@
 	G6.registerEdge('line-dash', {
 		afterDraw(cfg, group) {
 			const shape = group.get('children')[0];
-			const length = 200; // 后续 G 增加 totalLength 的接口
+			const length = shape.getTotalLength(); // G 增加了 totalLength 的接口
 			let totalArray = [];
 			for (var i = 0; i < length; i += interval) {
 				totalArray = totalArray.concat(lineDash);
@@ -129,7 +129,7 @@
 	G6.registerEdge('line-growth', {
 		afterDraw(cfg, group) {
 			const shape = group.get('children')[0];
-			const length = 200; // 后续 G 增加 totalLength 的接口
+			const length = shape.getTotalLength(); // G 增加了 totalLength 的接口
 			
 			shape.animate({
 				onFrame(ratio) {
diff --git a/demos/hover-animate.html b/demos/hover-animate.html
new file mode 100644
index 0000000000..82161be497
--- /dev/null
+++ b/demos/hover-animate.html
@@ -0,0 +1,155 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>状态切换动画</title>
+</head>
+<body>
+<div id="mountNode"></div>
+<script src="../build/g6.js"></script>
+<script>
+	const nodes = [];
+	const edges = [];
+	const centerNode = {
+		id: 'center',
+		x: 500,
+		y: 300,
+		shape: 'center-node',
+		size: 20
+	};
+	nodes.push(centerNode);
+	// 左侧添加 4 个节点
+	for(var i = 0; i < 4; i++) {
+		const id = 'left' + i;
+		nodes.push({
+			id,
+			x: 250,
+			y: (i + 1) * 100 + 50,
+			shape: 'leaf-node'
+		});
+		edges.push({source: id, target: 'center', shape: 'can-running'});
+	}
+
+	for(var i = 0; i < 6; i++) {
+		const id = 'right' + i;
+		nodes.push({
+			id,
+			x: 750,
+			y: i * 100 + 50,
+			shape: 'leaf-node'
+		});
+		edges.push({source: 'center', target: id, shape: 'can-running'});
+	}
+	G6.registerNode('leaf-node', {
+		afterDraw(cfg, group) {
+			group.addShape('circle', {
+				attrs: {
+					x: 0,
+					y: 0,
+					r: 5,
+					fill: cfg.color || '#666'
+				}
+			});
+		},
+		getAnchorPoints() {
+			return [
+				[0, 0.5], [1, 0.5]
+			]
+		}
+	}, 'circle');
+	// 右侧添加 6 个节点
+	G6.registerNode('center-node', {
+		afterDraw(cfg, group) {
+			const r = cfg.size / 2;
+			const back1 = group.addShape('circle',{
+				zIndex: -3,
+				attrs: {
+					x: 0,
+					y: 0,
+					r: r + 10,
+					fill: 'gray',
+					opacity: 0.4
+				}
+			});
+			const back2 = group.addShape('circle',{
+				zIndex: -2,
+				attrs: {
+					x: 0,
+					y: 0,
+					r: r + 20,
+					fill: 'gray', // 为了显示清晰，随意设置了颜色
+					opacity: 0.2
+				}
+			});
+			group.sort();
+		},
+		getAnchorPoints() {
+			return [
+				[0, 0.5], [1, 0.5]
+			]
+		}
+	}, 'circle');
+	// lineDash 的差值，可以在后面提供 util 方法自动计算
+	const dashArray = [
+		[0,1],
+		[0,2],
+		[1,2],
+		[0,1,1,2],
+		[0,2,1,2],
+		[1,2,1,2],
+		[2,2,1,2],
+		[3,2,1,2],
+		[4,2,1,2]
+	];
+
+	const lineDash = [4, 2, 1, 2];
+	const interval = 9;
+	G6.registerEdge('can-running', {
+		setState(name, value, item) {
+			const shape = item.get('keyShape');
+			if (name === 'running') {
+				if (value) {
+					const length = shape.getTotalLength(); // 后续 G 增加 totalLength 的接口
+					let totalArray = [];
+					for (var i = 0; i < length; i += interval) {
+						totalArray = totalArray.concat(lineDash);
+					}
+					let index = 0;
+					shape.animate({
+						onFrame(ratio) {
+							const cfg = {
+								lineDash: dashArray[index].concat(totalArray)
+							};
+							index = (index + 1) % interval;
+							return cfg;
+						},
+						repeat: true
+					}, 3000);
+				} else {
+					shape.stopAnimate();
+					shape.attr('lineDash', null);
+				}
+			}
+		}
+	}, 'cubic-horizontal');
+	const graph = new G6.Graph({
+    container: 'mountNode',
+    width: 1000,
+    height: 600
+  });
+  graph.data({nodes, edges});
+  graph.render();
+  graph.on('node:mouseenter', ev => {
+  	const node = ev.item;
+  	const edges = node.getEdges();
+  	edges.forEach(edge => graph.setItemState(edge, 'running', true));
+  });
+
+  graph.on('node:mouseleave', ev => {
+  	const node = ev.item;
+  	const edges = node.getEdges();
+  	edges.forEach(edge => graph.setItemState(edge, 'running', false));
+  });
+</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/demos/node-animate.html b/demos/node-animate.html
new file mode 100644
index 0000000000..c7a4141d09
--- /dev/null
+++ b/demos/node-animate.html
@@ -0,0 +1,179 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>节点的动画</title>
+</head>
+<body>
+<div id="mountNode"></div>
+<script src="../build/g6.js"></script>
+<script>
+	const Util = G6.Util;
+	const data = {
+	  nodes: [{
+	  	id: 'node1',
+	    x: 100,
+	    y: 100,
+	    shape: 'circle-animate',
+	    size: 20,
+	    label: '图形动画',
+	    labelCfg: {
+	      position: 'bottom'
+	    }
+	 },{
+	 		id: 'node2',
+	    x: 300,
+	    y: 200,
+	    shape: 'background-animate',
+	    color: 'red',
+	    size: 20,
+	   	label: '背景动画',
+	   	labelCfg: {
+	      position: 'bottom'
+	    }
+	},{
+	 		id: 'node3',
+	    x: 400,
+	    y: 100,
+	    size: [40, 40],
+	    shape: 'inner-animate',
+	    img: 'data:image/webp;base64,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',
+	   	label: 'rect',
+	   	labelCfg: {
+	      position: 'bottom'
+	    }
+	},{
+	 		id: 'node4',
+	    x: 300,
+	    y: 400,
+	    shape: 'rect',
+	   	label: 'rect',
+	   	labelCfg: {
+	      position: 'bottom'
+	    }
+	}],
+	edges: [
+	  {
+	    source: 'node1',
+	    target: 'node2'
+	  },
+	  {
+	    source: 'node3',
+	    target: 'node2'
+	  },
+	  {
+	    source: 'node2',
+	    target: 'node4'
+	  }
+	]};
+	
+	// 放大、变小动画
+	G6.registerNode('circle-animate', {
+		afterDraw(cfg, group) {
+			const shape = group.get('children')[0];
+			shape.animate({
+				repeat: true,
+				onFrame(ratio) {
+					const diff = ratio <=0.5 ? ratio * 10 : (1 - ratio) * 10;
+					return {
+						r: cfg.size / 2 + diff
+					}
+				}
+			}, 3000,'easeCubic');
+		}
+	}, 'circle');
+
+	G6.registerNode('background-animate', {
+		afterDraw(cfg, group) {
+			const r = cfg.size / 2;
+			const back1 = group.addShape('circle',{
+				zIndex: -3,
+				attrs: {
+					x: 0,
+					y: 0,
+					r,
+					fill: cfg.color,
+					opacity: 0.6
+				}
+			});
+			const back2 = group.addShape('circle',{
+				zIndex: -2,
+				attrs: {
+					x: 0,
+					y: 0,
+					r,
+					fill: 'blue', // 为了显示清晰，随意设置了颜色
+					opacity: 0.6
+				}
+			});
+
+			const back3 = group.addShape('circle',{
+				zIndex: -1,
+				attrs: {
+					x: 0,
+					y: 0,
+					r,
+					fill: 'green',
+					opacity: 0.6
+				}
+			});
+			group.sort(); // 排序，根据zIndex 排序
+			back1.animate({ // 逐渐放大，并消失
+				r: r + 10,
+				opacity: 0.1,
+				repeat: true // 循环
+			}, 3000, 'easeCubic', null, 0) // 无延迟
+
+			back2.animate({ // 逐渐放大，并消失
+				r: r + 10,
+				opacity: 0.1,
+				repeat: true // 循环
+			}, 3000, 'easeCubic', null, 1000) // 1 秒延迟
+
+			back3.animate({ // 逐渐放大，并消失
+				r: r + 10,
+				opacity: 0.1,
+				repeat: true // 循环
+			}, 3000, 'easeCubic', null, 2000) // 2 秒延迟
+		}
+	}, 'circle');
+
+	G6.registerNode('inner-animate', {
+		afterDraw(cfg, group) {
+			const size = cfg.size;
+			const width = size[0] - 12;
+			const height = size[1] - 12;
+			const image = group.addShape('image', {
+				attrs: {
+					x: - width / 2,
+					y: - height / 2,
+					width: width,
+					height: height,
+					img: cfg.img
+				}
+			});
+			image.animate({
+				onFrame(ratio) {
+					const matrix = Util.mat3.create();
+					const toMatrix = Util.transform(matrix, [
+						['r', ratio * Math.PI * 2]
+					]) ;
+					return {
+						matrix: toMatrix
+					};
+				},
+				repeat: true
+			}, 3000, 'easeCubic');
+		}
+	}, 'rect');
+
+	const graph = new G6.Graph({
+    container: 'mountNode',
+    width: 1000,
+    height: 600
+  });
+  graph.data(data);
+  graph.render();
+</script>
+</body>
+</html>
\ No newline at end of file
