diff --git a/packages/plugins/@nocobase/plugin-workflow-delay/src/client/DelayInstruction.tsx b/packages/plugins/@nocobase/plugin-workflow-delay/src/client/DelayInstruction.tsx
index 81935fa347..0f66b56457 100644
--- a/packages/plugins/@nocobase/plugin-workflow-delay/src/client/DelayInstruction.tsx
+++ b/packages/plugins/@nocobase/plugin-workflow-delay/src/client/DelayInstruction.tsx
@@ -8,11 +8,10 @@
  */
 
 import React from 'react';
-import { InputNumber, Select } from 'antd';
+import { Space } from 'antd';
 import { HourglassOutlined } from '@ant-design/icons';
 
-import { css, useCompile } from '@nocobase/client';
-import { Instruction, JOB_STATUS } from '@nocobase/plugin-workflow/client';
+import { Instruction, JOB_STATUS, WorkflowVariableInput } from '@nocobase/plugin-workflow/client';
 
 import { NAMESPACE } from '../locale';
 
@@ -24,47 +23,6 @@ const UnitOptions = [
   { value: 604800_000, label: `{{t('Weeks', { ns: "workflow" })}}` },
 ];
 
-function getNumberOption(v) {
-  return UnitOptions.slice()
-    .reverse()
-    .find((item) => !(v % item.value));
-}
-
-function Duration({ value = 60000, onChange }) {
-  const compile = useCompile();
-  const option = getNumberOption(value);
-  const quantity = Math.round(value / option.value);
-
-  return (
-    <fieldset
-      className={css`
-        display: flex;
-        gap: 0.5em;
-      `}
-    >
-      <InputNumber
-        min={1}
-        value={quantity}
-        onChange={(v) => onChange(Math.round(v * option.value))}
-        className="auto-width"
-      />
-      <Select
-        // @ts-ignore
-        role="button"
-        data-testid="select-time-unit"
-        popupMatchSelectWidth={false}
-        value={option.value}
-        onChange={(unit) => onChange(Math.round(quantity * unit))}
-        className="auto-width"
-        options={UnitOptions.map((item) => ({
-          value: item.value,
-          label: compile(item.label),
-        }))}
-      />
-    </fieldset>
-  );
-}
-
 export default class extends Instruction {
   title = `{{t("Delay", { ns: "${NAMESPACE}" })}}`;
   type = 'delay';
@@ -73,12 +31,37 @@ export default class extends Instruction {
   icon = (<HourglassOutlined style={{}} />);
   fieldset = {
     duration: {
-      type: 'number',
+      type: 'void',
       title: `{{t("Duration", { ns: "${NAMESPACE}" })}}`,
       'x-decorator': 'FormItem',
-      'x-component': 'Duration',
-      default: 60000,
+      'x-component': 'Space.Compact',
       required: true,
+      properties: {
+        unit: {
+          type: 'number',
+          'x-decorator': 'FormItem',
+          'x-component': 'Select',
+          'x-component-props': {
+            placeholder: `{{t("Unit", { ns: "${NAMESPACE}" })}}`,
+            className: 'auto-width',
+            allowClear: false,
+          },
+          enum: UnitOptions,
+          default: 60_000,
+        },
+        duration: {
+          type: 'number',
+          'x-decorator': 'FormItem',
+          'x-component': 'WorkflowVariableInput',
+          'x-component-props': {
+            placeholder: `{{t("Duration", { ns: "${NAMESPACE}" })}}`,
+            useTypedConstant: [['number', { min: 1 }]],
+            nullable: false,
+          },
+          default: 1,
+          required: true,
+        },
+      },
     },
     endStatus: {
       type: 'number',
@@ -94,7 +77,8 @@ export default class extends Instruction {
     },
   };
   components = {
-    Duration,
+    WorkflowVariableInput,
+    Space,
   };
   isAvailable({ engine, workflow, upstream, branchIndex }) {
     return !engine.isWorkflowSync(workflow);
diff --git a/packages/plugins/@nocobase/plugin-workflow-delay/src/locale/zh-CN.json b/packages/plugins/@nocobase/plugin-workflow-delay/src/locale/zh-CN.json
index 0eb731514f..bee971650b 100644
--- a/packages/plugins/@nocobase/plugin-workflow-delay/src/locale/zh-CN.json
+++ b/packages/plugins/@nocobase/plugin-workflow-delay/src/locale/zh-CN.json
@@ -2,6 +2,7 @@
   "Delay": "延时",
   "Delay a period of time and then continue or exit the process. Can be used to set wait or timeout times in parallel branches.": "延时一段时间，然后继续或退出流程。可以用于并行分支中等待其他分支或设置超时时间。",
   "Duration": "时长",
+  "Unit": "单位",
   "End status": "到时状态",
   "Select status": "选择状态",
   "Succeed and continue": "通过并继续",
diff --git a/packages/plugins/@nocobase/plugin-workflow-delay/src/server/DelayInstruction.ts b/packages/plugins/@nocobase/plugin-workflow-delay/src/server/DelayInstruction.ts
index a4d476a6a2..3edebcc85f 100644
--- a/packages/plugins/@nocobase/plugin-workflow-delay/src/server/DelayInstruction.ts
+++ b/packages/plugins/@nocobase/plugin-workflow-delay/src/server/DelayInstruction.ts
@@ -74,7 +74,7 @@ export default class extends Instruction {
   schedule(job) {
     const now = new Date();
     const createdAt = Date.parse(job.createdAt);
-    const delay = createdAt + job.node.config.duration - now.getTime();
+    const delay = createdAt + job.result - now.getTime();
     if (delay > 0) {
       const trigger = this.trigger.bind(this, job);
       this.timers.set(job.id, setTimeout(trigger, delay));
@@ -96,9 +96,10 @@ export default class extends Instruction {
   }
 
   async run(node, prevJob, processor: Processor) {
+    const duration = processor.getParsedValue(node.config.duration || 1, node.id) * (node.config.unit || 1_000);
     const job = await processor.saveJob({
       status: JOB_STATUS.PENDING,
-      result: null,
+      result: duration,
       nodeId: node.id,
       nodeKey: node.key,
       upstreamId: prevJob?.id ?? null,
diff --git a/packages/plugins/@nocobase/plugin-workflow-delay/src/server/__tests__/instruction.test.ts b/packages/plugins/@nocobase/plugin-workflow-delay/src/server/__tests__/instruction.test.ts
index 464d572cab..1335c06997 100644
--- a/packages/plugins/@nocobase/plugin-workflow-delay/src/server/__tests__/instruction.test.ts
+++ b/packages/plugins/@nocobase/plugin-workflow-delay/src/server/__tests__/instruction.test.ts
@@ -47,7 +47,8 @@ describe('workflow > instructions > delay', () => {
       const n1 = await workflow.createNode({
         type: 'delay',
         config: {
-          duration: 2000,
+          duration: 2,
+          unit: 1000,
           endStatus: JOB_STATUS.RESOLVED,
         },
       });
@@ -73,7 +74,8 @@ describe('workflow > instructions > delay', () => {
       const n1 = await workflow.createNode({
         type: 'delay',
         config: {
-          duration: 2000,
+          duration: 2,
+          unit: 1000,
           endStatus: JOB_STATUS.FAILED,
         },
       });
@@ -95,11 +97,49 @@ describe('workflow > instructions > delay', () => {
       expect(j2.status).toBe(JOB_STATUS.FAILED);
     });
 
+    it('duration by variable', async () => {
+      const n1 = await workflow.createNode({
+        type: 'echoVariable',
+        config: {
+          variable: 2,
+        },
+      });
+
+      const n2 = await workflow.createNode({
+        type: 'delay',
+        config: {
+          duration: `{{$jobsMapByNodeKey.${n1.key}}}`,
+          unit: 1000,
+          endStatus: JOB_STATUS.RESOLVED,
+        },
+        upstreamId: n1.id,
+      });
+
+      await n1.setDownstream(n2);
+
+      const post = await PostRepo.create({ values: { title: 't1' } });
+
+      await sleep(500);
+
+      const [e1] = await workflow.getExecutions();
+      expect(e1.status).toEqual(EXECUTION_STATUS.STARTED);
+      const [, j1] = await e1.getJobs({ order: [['id', 'ASC']] });
+      expect(j1.status).toBe(JOB_STATUS.PENDING);
+
+      await sleep(2000);
+
+      const [e2] = await workflow.getExecutions();
+      expect(e2.status).toEqual(EXECUTION_STATUS.RESOLVED);
+      const [, j2] = await e2.getJobs({ order: [['id', 'ASC']] });
+      expect(j2.status).toBe(JOB_STATUS.RESOLVED);
+    });
+
     it('delay to resolve and downstream node error', async () => {
       const n1 = await workflow.createNode({
         type: 'delay',
         config: {
-          duration: 2000,
+          duration: 2,
+          unit: 1000,
           endStatus: JOB_STATUS.RESOLVED,
         },
       });
@@ -139,7 +179,8 @@ describe('workflow > instructions > delay', () => {
       await workflow.createNode({
         type: 'delay',
         config: {
-          duration: 2000,
+          duration: 2,
+          unit: 1000,
           endStatus: JOB_STATUS.RESOLVED,
         },
       });
diff --git a/packages/plugins/@nocobase/plugin-workflow-delay/src/server/__tests__/migrations/20250403223032-add-duration-unit.test.ts b/packages/plugins/@nocobase/plugin-workflow-delay/src/server/__tests__/migrations/20250403223032-add-duration-unit.test.ts
new file mode 100644
index 0000000000..addafa71a1
--- /dev/null
+++ b/packages/plugins/@nocobase/plugin-workflow-delay/src/server/__tests__/migrations/20250403223032-add-duration-unit.test.ts
@@ -0,0 +1,86 @@
+/**
+ * This file is part of the NocoBase (R) project.
+ * Copyright (c) 2020-2024 NocoBase Co., Ltd.
+ * Authors: NocoBase Team.
+ *
+ * This project is dual-licensed under AGPL-3.0 and NocoBase Commercial License.
+ * For more information, please refer to: https://www.nocobase.com/agreement.
+ */
+
+import { createMockServer } from '@nocobase/test';
+import Migration from '../../migrations/20250403223032-add-duration-unit';
+
+describe('20250403223032-add-duration-unit', () => {
+  let app;
+  let migration;
+  let NodeRepo;
+
+  beforeEach(async () => {
+    app = await createMockServer({
+      plugins: ['nocobase'],
+    });
+    await app.version.update('1.6.0');
+
+    migration = new Migration({ db: app.db, app } as any);
+
+    NodeRepo = app.db.getRepository('flow_nodes');
+  });
+
+  afterEach(async () => {
+    await app.destroy();
+  });
+
+  it(`duration as null`, async () => {
+    const n1 = await NodeRepo.create({
+      values: {
+        type: 'delay',
+        config: {},
+      },
+    });
+
+    await migration.up();
+
+    const n2 = await NodeRepo.findOne({
+      filterByTk: n1.id,
+    });
+    expect(n2.config.duration).toBeFalsy();
+  });
+
+  it(`duration as number (second)`, async () => {
+    const n1 = await NodeRepo.create({
+      values: {
+        type: 'delay',
+        config: {
+          duration: 1000,
+        },
+      },
+    });
+
+    await migration.up();
+
+    const n2 = await NodeRepo.findOne({
+      filterByTk: n1.id,
+    });
+    expect(n2.config.duration).toBe(1);
+    expect(n2.config.unit).toBe(1000);
+  });
+
+  it(`duration as number (day)`, async () => {
+    const n1 = await NodeRepo.create({
+      values: {
+        type: 'delay',
+        config: {
+          duration: 1000 * 60 * 60 * 24 * 2,
+        },
+      },
+    });
+
+    await migration.up();
+
+    const n2 = await NodeRepo.findOne({
+      filterByTk: n1.id,
+    });
+    expect(n2.config.duration).toBe(2);
+    expect(n2.config.unit).toBe(1000 * 60 * 60 * 24);
+  });
+});
diff --git a/packages/plugins/@nocobase/plugin-workflow-delay/src/server/migrations/20250403223032-add-duration-unit.ts b/packages/plugins/@nocobase/plugin-workflow-delay/src/server/migrations/20250403223032-add-duration-unit.ts
new file mode 100644
index 0000000000..9c5600caa3
--- /dev/null
+++ b/packages/plugins/@nocobase/plugin-workflow-delay/src/server/migrations/20250403223032-add-duration-unit.ts
@@ -0,0 +1,54 @@
+/**
+ * This file is part of the NocoBase (R) project.
+ * Copyright (c) 2020-2024 NocoBase Co., Ltd.
+ * Authors: NocoBase Team.
+ *
+ * This project is dual-licensed under AGPL-3.0 and NocoBase Commercial License.
+ * For more information, please refer to: https://www.nocobase.com/agreement.
+ */
+
+import { Migration } from '@nocobase/server';
+
+const UnitOptions = [604800_000, 86400_000, 3600_000, 60_000, 1_000];
+
+function getNumberOption(v) {
+  return UnitOptions.find((item) => !(v % item));
+}
+
+export default class extends Migration {
+  appVersion = '<1.7.0';
+  async up() {
+    const { db } = this.context;
+
+    const NodeRepo = db.getRepository('flow_nodes');
+    await db.sequelize.transaction(async (transaction) => {
+      const nodes = await NodeRepo.find({
+        filter: {
+          type: 'delay',
+        },
+        transaction,
+      });
+
+      await nodes.reduce(
+        (promise, node) =>
+          promise.then(async () => {
+            if (node.config.unit) {
+              return;
+            }
+            if (!node.config.duration) {
+              return;
+            }
+            const unit = getNumberOption(node.config.duration);
+            const duration = node.config.duration / unit;
+            node.set('config', { ...node.config, duration, unit });
+            node.changed('config', true);
+            await node.save({
+              silent: true,
+              transaction,
+            });
+          }),
+        Promise.resolve(),
+      );
+    });
+  }
+}