diff --git a/packages/core/database/src/fields/number-field.ts b/packages/core/database/src/fields/number-field.ts
index fed7655ef..aa9b90401 100644
--- a/packages/core/database/src/fields/number-field.ts
+++ b/packages/core/database/src/fields/number-field.ts
@@ -64,10 +64,12 @@ export interface RealFieldOptions extends BaseColumnFieldOptions {
 
 export class DecimalField extends NumberField {
   get dataType() {
-    return DataTypes.DECIMAL;
+    return DataTypes.DECIMAL(this.options.precision, this.options.scale);
   }
 }
 
 export interface DecimalFieldOptions extends BaseColumnFieldOptions {
   type: 'decimal';
+  precision: number;
+  scale: number;
 }
diff --git a/packages/plugins/@nocobase/plugin-action-export/src/server/__tests__/export-to-xlsx.test.ts b/packages/plugins/@nocobase/plugin-action-export/src/server/__tests__/export-to-xlsx.test.ts
index a8ce50061..707c31ebe 100644
--- a/packages/plugins/@nocobase/plugin-action-export/src/server/__tests__/export-to-xlsx.test.ts
+++ b/packages/plugins/@nocobase/plugin-action-export/src/server/__tests__/export-to-xlsx.test.ts
@@ -38,6 +38,7 @@ describe('export to xlsx with preset', () => {
         { type: 'string', name: 'title' },
         { type: 'integer', name: 'integer' },
         { type: 'float', name: 'float' },
+        { type: 'decimal', name: 'decimal', scale: 3, precision: 12 },
       ],
     });
 
@@ -49,11 +50,13 @@ describe('export to xlsx with preset', () => {
           title: 'p1',
           integer: 123,
           float: 123.456,
+          decimal: 234.567,
         },
         {
           title: 'p2',
           integer: 456,
           float: 456.789,
+          decimal: 345.678,
         },
       ],
     });
@@ -72,6 +75,10 @@ describe('export to xlsx with preset', () => {
           dataIndex: ['float'],
           defaultTitle: 'float',
         },
+        {
+          dataIndex: ['decimal'],
+          defaultTitle: 'decimal',
+        },
       ],
     });
 
@@ -97,6 +104,10 @@ describe('export to xlsx with preset', () => {
       const cellC2 = firstSheet['C2'];
       expect(cellC2.t).toBe('n');
       expect(cellC2.v).toBe(123.456);
+
+      const cellD2 = firstSheet['D2'];
+      expect(cellD2.t).toBe('n');
+      expect(cellD2.v).toBe(234.567);
     } finally {
       fs.unlinkSync(xlsxFilePath);
     }
diff --git a/packages/plugins/@nocobase/plugin-action-export/src/server/xlsx-exporter.ts b/packages/plugins/@nocobase/plugin-action-export/src/server/xlsx-exporter.ts
index c46043efd..5ff47dda0 100644
--- a/packages/plugins/@nocobase/plugin-action-export/src/server/xlsx-exporter.ts
+++ b/packages/plugins/@nocobase/plugin-action-export/src/server/xlsx-exporter.ts
@@ -96,7 +96,7 @@ class XlsxExporter {
         for (let r = 1; r <= cellRange.e.r; r++) {
           const cell = worksheet[XLSX.utils.encode_cell({ c: colIndex, r })];
           // if cell and cell.v is a number, set cell.t to 'n'
-          if (cell && typeof cell.v === 'number') {
+          if (cell && isNumeric(cell.v)) {
             cell.t = 'n';
           }
         }
@@ -214,4 +214,8 @@ class XlsxExporter {
   }
 }
 
+function isNumeric(n) {
+  return !isNaN(parseFloat(n)) && isFinite(n);
+}
+
 export default XlsxExporter;