diff --git a/common/changes/@visactor/vue-vtable/fix-issue-4925-datasource-editor_2026-09-21-00-00.json b/common/changes/@visactor/vue-vtable/fix-issue-4925-datasource-editor_2026-09-21-00-00.json
new file mode 100644
index 000000000..861f33ccf
--- /dev/null
+++ b/common/changes/@visactor/vue-vtable/fix-issue-4925-datasource-editor_2026-09-21-00-00.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "@visactor/vue-vtable",
+      "comment": "fix: prevent dynamic editor completion from overwriting immediate cell updates",
+      "type": "patch"
+    }
+  ],
+  "packageName": "@visactor/vue-vtable",
+  "email": "github@visactor.io"
+}
diff --git a/packages/vue-vtable/__tests__/dynamic-render-editor.test.ts b/packages/vue-vtable/__tests__/dynamic-render-editor.test.ts
new file mode 100644
index 000000000..f9042db5a
--- /dev/null
+++ b/packages/vue-vtable/__tests__/dynamic-render-editor.test.ts
@@ -0,0 +1,178 @@
+/* eslint-env jest */
+/* eslint-disable no-undef */
+// @ts-nocheck
+import { DynamicRenderEditor } from '../src/edit/editor';
+
+jest.mock('@visactor/vtable', () => ({
+  TYPES: {
+    Placement: {
+      top: 'top'
+    }
+  }
+}));
+
+describe('DynamicRenderEditor', () => {
+  test('finishes synchronously without validation before a button updates the edited cell', async () => {
+    let cellValue = 'original';
+    const editor = new DynamicRenderEditor();
+    editor.setValue('editor-value');
+
+    const table = {
+      getBodyColumnDefine: jest.fn().mockReturnValue({ field: 'name' })
+    } as any;
+
+    const finishEditing = () => {
+      const validation = editor.validateValue(editor.getValue(), cellValue, { col: 0, row: 1 }, table);
+      if (validation instanceof Promise) {
+        return validation.then(valid => {
+          if (valid) {
+            cellValue = editor.getValue();
+          }
+        });
+      }
+      if (validation) {
+        cellValue = editor.getValue();
+      }
+      return validation;
+    };
+
+    const completion = finishEditing();
+    cellValue = 'button-value';
+    await completion;
+
+    expect(cellValue).toBe('button-value');
+  });
+
+  test('keeps configured synchronous validation synchronous', () => {
+    const editor = new DynamicRenderEditor();
+    const table = {
+      getBodyColumnDefine: jest.fn().mockReturnValue({
+        editConfig: {
+          validateValue: () => false,
+          invalidPrompt: 'invalid value'
+        }
+      }),
+      getVisibleCellRangeRelativeRect: jest.fn().mockReturnValue({ left: 0, top: 0, width: 100, height: 40 }),
+      showTooltip: jest.fn()
+    } as any;
+
+    const validation = editor.validateValue('next', 'previous', { col: 0, row: 1 }, table);
+
+    expect(validation).toBe(false);
+    expect(table.showTooltip).toHaveBeenCalledWith(
+      0,
+      1,
+      expect.objectContaining({
+        content: 'invalid value'
+      })
+    );
+  });
+
+  test('keeps configured asynchronous validation asynchronous', async () => {
+    const editor = new DynamicRenderEditor();
+    const table = {
+      getBodyColumnDefine: jest.fn().mockReturnValue({
+        editConfig: {
+          validateValue: () => Promise.resolve(true)
+        }
+      })
+    } as any;
+
+    const validation = editor.validateValue('next', 'previous', { col: 0, row: 1 }, table);
+
+    expect(validation).toBeInstanceOf(Promise);
+    await expect(validation).resolves.toBe(true);
+  });
+
+  test('converts synchronous validation errors to rejected promises', async () => {
+    const editor = new DynamicRenderEditor();
+    const error = new Error('validation failed');
+    const table = {
+      getBodyColumnDefine: jest.fn().mockReturnValue({
+        editConfig: {
+          validateValue: () => {
+            throw error;
+          }
+        }
+      })
+    } as any;
+
+    const validation = editor.validateValue('next', 'previous', { col: 0, row: 1 }, table);
+
+    expect(validation).toBeInstanceOf(Promise);
+    await expect(validation).rejects.toBe(error);
+  });
+
+  test('handles promise-like validation results from another realm', async () => {
+    const editor = new DynamicRenderEditor();
+    const promiseLike = {
+      then(resolve: (value: boolean) => boolean) {
+        return Promise.resolve(resolve(false));
+      }
+    };
+    const table = {
+      getBodyColumnDefine: jest.fn().mockReturnValue({
+        editConfig: {
+          validateValue: () => promiseLike
+        }
+      }),
+      getVisibleCellRangeRelativeRect: jest.fn().mockReturnValue({ left: 0, top: 0, width: 100, height: 40 }),
+      showTooltip: jest.fn()
+    } as any;
+
+    const validation = editor.validateValue('next', 'previous', { col: 0, row: 1 }, table);
+
+    await expect(validation).resolves.toBe(false);
+    expect(table.showTooltip).toHaveBeenCalledWith(
+      0,
+      1,
+      expect.objectContaining({
+        content: 'invalid'
+      })
+    );
+  });
+
+  test('converts errors from a promise-like then getter to rejected promises', async () => {
+    const editor = new DynamicRenderEditor();
+    const error = new Error('then getter failed');
+    const promiseLike = Object.defineProperty({}, 'then', {
+      get() {
+        throw error;
+      }
+    });
+    const table = {
+      getBodyColumnDefine: jest.fn().mockReturnValue({
+        editConfig: {
+          validateValue: () => promiseLike
+        }
+      })
+    } as any;
+
+    const validation = editor.validateValue('next', 'previous', { col: 0, row: 1 }, table);
+
+    expect(validation).toBeInstanceOf(Promise);
+    await expect(validation).rejects.toBe(error);
+  });
+
+  test('converts errors from invoking a promise-like then to rejected promises', async () => {
+    const editor = new DynamicRenderEditor();
+    const error = new Error('then invocation failed');
+    const promiseLike = {
+      then() {
+        throw error;
+      }
+    };
+    const table = {
+      getBodyColumnDefine: jest.fn().mockReturnValue({
+        editConfig: {
+          validateValue: () => promiseLike
+        }
+      })
+    } as any;
+
+    const validation = editor.validateValue('next', 'previous', { col: 0, row: 1 }, table);
+
+    expect(validation).toBeInstanceOf(Promise);
+    await expect(validation).rejects.toBe(error);
+  });
+});
diff --git a/packages/vue-vtable/demo/src/App.vue b/packages/vue-vtable/demo/src/App.vue
index 3722650d6..99f720975 100644
--- a/packages/vue-vtable/demo/src/App.vue
+++ b/packages/vue-vtable/demo/src/App.vue
@@ -22,6 +22,7 @@ import ListTableCustomHover from './table/gramatical/composition/ListTable-custo
 import Issue5150CustomLayoutSort from './table/gramatical/composition/Issue5150CustomLayoutSort.vue';
 import Issue5157CustomLayoutScrollbar from './table/gramatical/composition/Issue5157CustomLayoutScrollbar.vue';
 import Issue4884SlotEditorBackground from './table/gramatical/composition/Issue4884SlotEditorBackground.vue';
+import Issue4925DataSourceEditor from './table/gramatical/composition/Issue4925DataSourceEditor.vue';
 import ListTableVFor from './table/gramatical/options/ListTable-v-for.vue';
 
 import PivotTable from './table/gramatical/options/PivotTable.vue';
@@ -55,7 +56,8 @@ import singleRadio from './table/single/single-radio.vue';
 
   <!-- <ListTable /> -->
   <!-- <Issue5150CustomLayoutSort /> -->
-  <Issue4884SlotEditorBackground />
+  <!-- <Issue4884SlotEditorBackground /> -->
+  <Issue4925DataSourceEditor />
   <!-- <ListTableEditor /> -->
   <!-- <ListTableEditorArco /> -->
   <!-- <ListTableEditorRender /> -->
diff --git a/packages/vue-vtable/demo/src/table/gramatical/composition/Issue4925DataSourceEditor.vue b/packages/vue-vtable/demo/src/table/gramatical/composition/Issue4925DataSourceEditor.vue
new file mode 100644
index 000000000..8e72ac70f
--- /dev/null
+++ b/packages/vue-vtable/demo/src/table/gramatical/composition/Issue4925DataSourceEditor.vue
@@ -0,0 +1,72 @@
+<template>
+  <div class="issue-4925-demo">
+    <div class="result" data-testid="issue-4925-result">Current value: {{ currentValue }}</div>
+    <vue-list-table ref="tableRef" class="table" :options="option">
+      <ListColumn field="id" title="ID" :width="100" />
+      <ListColumn field="status" title="Status" :width="240" :editor="DYNAMIC_RENDER_EDITOR">
+        <template #edit="{ table, col, row }">
+          <button class="update-button" @click.stop="updateCurrentCell(table, col, row)">Set approved</button>
+        </template>
+      </ListColumn>
+    </vue-list-table>
+  </div>
+</template>
+
+<script setup lang="ts">
+import * as VTable from '@visactor/vtable';
+import { ref } from 'vue';
+import { DYNAMIC_RENDER_EDITOR, ListColumn } from '../../../../../src';
+
+const records = [
+  { id: 1, status: 'pending' },
+  { id: 2, status: 'pending' }
+];
+const dataSource = new VTable.data.CachedDataSource({
+  get(index: number) {
+    return records[index];
+  },
+  length: records.length
+});
+const option = {
+  dataSource,
+  editCellTrigger: 'click'
+};
+const tableRef = ref();
+const currentValue = ref(records[0].status);
+
+function updateCurrentCell(table: VTable.ListTable, col: number, row: number) {
+  table.completeEditCell();
+  table.changeCellValue(col, row, 'approved');
+  setTimeout(() => {
+    currentValue.value = String(table.getCellOriginValue(col, row));
+  }, 0);
+}
+</script>
+
+<style scoped>
+.issue-4925-demo {
+  display: flex;
+  height: 100vh;
+  min-height: 0;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.table {
+  flex: 1;
+  min-height: 0;
+}
+
+.result {
+  font-size: 14px;
+  line-height: 32px;
+}
+
+.update-button {
+  height: 100%;
+  border: 1px solid #1664ff;
+  background: #1664ff;
+  color: #fff;
+  cursor: pointer;
+}
+</style>
diff --git a/packages/vue-vtable/jest.config.js b/packages/vue-vtable/jest.config.js
index bfdfee91b..d5d5718d0 100644
--- a/packages/vue-vtable/jest.config.js
+++ b/packages/vue-vtable/jest.config.js
@@ -9,9 +9,8 @@ module.exports = {
   verbose: true,
   globals: {
     'ts-jest': {
-      diagnostics: {
-        exclude: ['**']
-      },
+      diagnostics: false,
+      isolatedModules: true,
       tsconfig: {
         resolveJsonModule: true,
         esModuleInterop: true
diff --git a/packages/vue-vtable/src/edit/editor.ts b/packages/vue-vtable/src/edit/editor.ts
index 256ec9805..d74c8728f 100644
--- a/packages/vue-vtable/src/edit/editor.ts
+++ b/packages/vue-vtable/src/edit/editor.ts
@@ -4,6 +4,10 @@ import { h, isVNode, customRef, render } from 'vue';
 import { TYPES } from '@visactor/vtable';
 import type { RectProps } from '@visactor/vtable/es/ts-types/common';
 
+function isPromiseLike<T>(value: T | Promise<T>): value is Promise<T> {
+  return Boolean(value && typeof (value as Promise<T>).then === 'function');
+}
+
 /** 渲染式编辑器参数 */
 export interface DynamicRenderEditorParams {
   /** 行索引 */
@@ -236,12 +240,12 @@ export class DynamicRenderEditor {
     }
   }
 
-  async validateValue(
+  validateValue(
     value?: any,
     oldValue?: any,
     editCell?: { col: number; row: number },
     table?: any
-  ): Promise<boolean> {
+  ): boolean | Promise<boolean> {
     const { col, row } = editCell || {};
     if (!isValid(col) || !isValid(row)) {
       return true;
@@ -249,22 +253,31 @@ export class DynamicRenderEditor {
     const define = table.getBodyColumnDefine(col, row) as ColumnDefine;
     const { editConfig } = define || {};
     if (typeof editConfig?.validateValue === 'function') {
-      const validate = await editConfig.validateValue({ col, row, value, oldValue, table });
-      if (validate === false) {
-        const rect = table.getVisibleCellRangeRelativeRect({ col, row });
-        table.showTooltip(col, row, {
-          content: editConfig.invalidPrompt || 'invalid',
-          referencePosition: { rect, placement: TYPES.Placement.top },
-          style: {
-            bgColor: 'red',
-            color: 'white',
-            arrowMark: true
-          },
-          disappearDelay: 1000
-        });
-        return false;
+      const handleValidationResult = (validate: boolean) => {
+        if (validate === false) {
+          const rect = table.getVisibleCellRangeRelativeRect({ col, row });
+          table.showTooltip(col, row, {
+            content: editConfig.invalidPrompt || 'invalid',
+            referencePosition: { rect, placement: TYPES.Placement.top },
+            style: {
+              bgColor: 'red',
+              color: 'white',
+              arrowMark: true
+            },
+            disappearDelay: 1000
+          });
+          return false;
+        }
+        return validate;
+      };
+      try {
+        const validate = editConfig.validateValue({ col, row, value, oldValue, table });
+        return isPromiseLike(validate)
+          ? Promise.resolve(validate).then(handleValidationResult)
+          : handleValidationResult(validate);
+      } catch (error) {
+        return Promise.reject(error);
       }
-      return validate;
     }
     return true;
   }