diff --git a/apps/web-antd/src/components/simple-process-design/components/simple-process-model.vue b/apps/web-antd/src/components/simple-process-design/components/simple-process-model.vue
index d50bd9d12..97fe9b2a1 100644
--- a/apps/web-antd/src/components/simple-process-design/components/simple-process-model.vue
+++ b/apps/web-antd/src/components/simple-process-design/components/simple-process-model.vue
@@ -249,7 +249,7 @@ onMounted(() => {
       />
     </div>
   </div>
-  <!-- TODO 这个好像暂时没有用到。保存失败弹窗 -->
+
   <Modal
     v-model:open="errorDialogVisible"
     title="保存失败"
diff --git a/apps/web-antd/src/components/simple-process-design/components/simple-process-viewer.vue b/apps/web-antd/src/components/simple-process-design/components/simple-process-viewer.vue
new file mode 100644
index 000000000..95cf3f321
--- /dev/null
+++ b/apps/web-antd/src/components/simple-process-design/components/simple-process-viewer.vue
@@ -0,0 +1,45 @@
+<script setup lang="ts">
+import type { SimpleFlowNode } from '../consts';
+
+import { provide, ref, watch } from 'vue';
+
+import { useWatchNode } from '../helpers';
+import SimpleProcessModel from './simple-process-model.vue';
+
+defineOptions({ name: 'SimpleProcessViewer' });
+
+const props = withDefaults(
+  defineProps<{
+    flowNode: SimpleFlowNode;
+    // 流程实例
+    processInstance?: any;
+    // 流程任务
+    tasks?: any[];
+  }>(),
+  {
+    processInstance: undefined,
+    tasks: () => [] as any[],
+  },
+);
+const approveTasks = ref<any[]>(props.tasks);
+const currentProcessInstance = ref(props.processInstance);
+const simpleModel = useWatchNode(props);
+watch(
+  () => props.tasks,
+  (newValue) => {
+    approveTasks.value = newValue;
+  },
+);
+watch(
+  () => props.processInstance,
+  (newValue) => {
+    currentProcessInstance.value = newValue;
+  },
+);
+// 提供给后代组件使用
+provide('tasks', approveTasks);
+provide('processInstance', currentProcessInstance);
+</script>
+<template>
+  <SimpleProcessModel :flow-node="simpleModel" :readonly="true" />
+</template>
diff --git a/apps/web-antd/src/components/simple-process-design/index.ts b/apps/web-antd/src/components/simple-process-design/index.ts
index ff79ef8cf..41269eae8 100644
--- a/apps/web-antd/src/components/simple-process-design/index.ts
+++ b/apps/web-antd/src/components/simple-process-design/index.ts
@@ -4,4 +4,8 @@ export { default as HttpRequestSetting } from './components/nodes-config/modules
 
 export { default as SimpleProcessDesigner } from './components/simple-process-designer.vue';
 
+export { default as SimpleProcessViewer } from './components/simple-process-viewer.vue';
+
+export type { SimpleFlowNode } from './consts';
+
 export { parseFormFields } from './helpers';
diff --git a/apps/web-antd/src/views/bpm/processInstance/detail/index.vue b/apps/web-antd/src/views/bpm/processInstance/detail/index.vue
index f86258ec5..cd2f220f8 100644
--- a/apps/web-antd/src/views/bpm/processInstance/detail/index.vue
+++ b/apps/web-antd/src/views/bpm/processInstance/detail/index.vue
@@ -346,7 +346,12 @@ onMounted(async () => {
               </Row>
             </TabPane>
 
-            <TabPane tab="流程图" key="diagram" class="tab-pane-content">
+            <TabPane
+              tab="流程图"
+              key="diagram"
+              class="tab-pane-content"
+              :force-render="true"
+            >
               <div class="h-full">
                 <ProcessInstanceSimpleViewer
                   v-show="
diff --git a/apps/web-antd/src/views/bpm/processInstance/detail/modules/simple-bpm-viewer.vue b/apps/web-antd/src/views/bpm/processInstance/detail/modules/simple-bpm-viewer.vue
index 5f1c9bb31..90777e520 100644
--- a/apps/web-antd/src/views/bpm/processInstance/detail/modules/simple-bpm-viewer.vue
+++ b/apps/web-antd/src/views/bpm/processInstance/detail/modules/simple-bpm-viewer.vue
@@ -1,9 +1,180 @@
-<script setup lang="ts">
-defineOptions({ name: 'ProcessInstanceSimpleViewer' });
-</script>
+<script lang="ts" setup>
+import type { SimpleFlowNode } from '#/components/simple-process-design';
 
+import { ref, watch } from 'vue';
+
+import { SimpleProcessViewer } from '#/components/simple-process-design';
+import { BpmNodeTypeEnum, BpmTaskStatusEnum } from '#/utils';
+
+defineOptions({ name: 'BpmProcessInstanceSimpleViewer' });
+
+const props = withDefaults(
+  defineProps<{
+    loading?: boolean; // 是否加载中
+    modelView?: any;
+    simpleJson?: string; // Simple 模型结构数据 (json 格式)
+  }>(),
+  {
+    loading: false,
+    modelView: () => ({}),
+    simpleJson: '',
+  },
+);
+
+const simpleModel = ref<any>({});
+// 用户任务
+const tasks = ref([]);
+// 流程实例
+const processInstance = ref();
+
+/** 监控模型视图 包括任务列表、进行中的活动节点编号等 */
+watch(
+  () => props.modelView,
+  async (newModelView) => {
+    if (newModelView) {
+      tasks.value = newModelView.tasks;
+      processInstance.value = newModelView.processInstance;
+      // 已经拒绝的活动节点编号集合，只包括 UserTask
+      const rejectedTaskActivityIds: string[] =
+        newModelView.rejectedTaskActivityIds;
+      // 进行中的活动节点编号集合， 只包括 UserTask
+      const unfinishedTaskActivityIds: string[] =
+        newModelView.unfinishedTaskActivityIds;
+      // 已经完成的活动节点编号集合， 包括 UserTask、Gateway 等
+      const finishedActivityIds: string[] =
+        newModelView.finishedTaskActivityIds;
+      // 已经完成的连线节点编号集合，只包括 SequenceFlow
+      const finishedSequenceFlowActivityIds: string[] =
+        newModelView.finishedSequenceFlowActivityIds;
+      setSimpleModelNodeTaskStatus(
+        newModelView.simpleModel,
+        newModelView.processInstance?.status,
+        rejectedTaskActivityIds,
+        unfinishedTaskActivityIds,
+        finishedActivityIds,
+        finishedSequenceFlowActivityIds,
+      );
+      simpleModel.value = newModelView.simpleModel || {};
+    }
+  },
+);
+
+/** 监控模型结构数据 */
+watch(
+  () => props.simpleJson,
+  async (value) => {
+    if (value) {
+      simpleModel.value = JSON.parse(value);
+    }
+  },
+);
+const setSimpleModelNodeTaskStatus = (
+  simpleModel: SimpleFlowNode | undefined,
+  processStatus: number,
+  rejectedTaskActivityIds: string[],
+  unfinishedTaskActivityIds: string[],
+  finishedActivityIds: string[],
+  finishedSequenceFlowActivityIds: string[],
+) => {
+  if (!simpleModel) {
+    return;
+  }
+  // 结束节点
+  if (simpleModel.type === BpmNodeTypeEnum.END_EVENT_NODE) {
+    simpleModel.activityStatus = finishedActivityIds.includes(simpleModel.id)
+      ? processStatus
+      : BpmTaskStatusEnum.NOT_START;
+    return;
+  }
+  // 审批节点
+  if (
+    simpleModel.type === BpmNodeTypeEnum.START_USER_NODE ||
+    simpleModel.type === BpmNodeTypeEnum.USER_TASK_NODE ||
+    simpleModel.type === BpmNodeTypeEnum.TRANSACTOR_NODE ||
+    simpleModel.type === BpmNodeTypeEnum.CHILD_PROCESS_NODE
+  ) {
+    simpleModel.activityStatus = BpmTaskStatusEnum.NOT_START;
+    if (rejectedTaskActivityIds.includes(simpleModel.id)) {
+      simpleModel.activityStatus = BpmTaskStatusEnum.REJECT;
+    } else if (unfinishedTaskActivityIds.includes(simpleModel.id)) {
+      simpleModel.activityStatus = BpmTaskStatusEnum.RUNNING;
+    } else if (finishedActivityIds.includes(simpleModel.id)) {
+      simpleModel.activityStatus = BpmTaskStatusEnum.APPROVE;
+    }
+    // TODO 是不是还缺一个 cancel 的状态
+  }
+  // 抄送节点
+  if (simpleModel.type === BpmNodeTypeEnum.COPY_TASK_NODE) {
+    // 抄送节点,只有通过和未执行状态
+    simpleModel.activityStatus = finishedActivityIds.includes(simpleModel.id)
+      ? BpmTaskStatusEnum.APPROVE
+      : BpmTaskStatusEnum.NOT_START;
+  }
+  // 延迟器节点
+  if (simpleModel.type === BpmNodeTypeEnum.DELAY_TIMER_NODE) {
+    // 延迟器节点,只有通过和未执行状态
+    simpleModel.activityStatus = finishedActivityIds.includes(simpleModel.id)
+      ? BpmTaskStatusEnum.APPROVE
+      : BpmTaskStatusEnum.NOT_START;
+  }
+  // 触发器节点
+  if (simpleModel.type === BpmNodeTypeEnum.TRIGGER_NODE) {
+    // 触发器节点,只有通过和未执行状态
+    simpleModel.activityStatus = finishedActivityIds.includes(simpleModel.id)
+      ? BpmTaskStatusEnum.APPROVE
+      : BpmTaskStatusEnum.NOT_START;
+  }
+
+  // 条件节点对应 SequenceFlow
+  if (simpleModel.type === BpmNodeTypeEnum.CONDITION_NODE) {
+    // 条件节点,只有通过和未执行状态
+    simpleModel.activityStatus = finishedSequenceFlowActivityIds.includes(
+      simpleModel.id,
+    )
+      ? BpmTaskStatusEnum.APPROVE
+      : BpmTaskStatusEnum.NOT_START;
+  }
+  // 网关节点
+  if (
+    simpleModel.type === BpmNodeTypeEnum.CONDITION_BRANCH_NODE ||
+    simpleModel.type === BpmNodeTypeEnum.PARALLEL_BRANCH_NODE ||
+    simpleModel.type === BpmNodeTypeEnum.INCLUSIVE_BRANCH_NODE ||
+    simpleModel.type === BpmNodeTypeEnum.ROUTER_BRANCH_NODE
+  ) {
+    // 网关节点。只有通过和未执行状态
+    simpleModel.activityStatus = finishedActivityIds.includes(simpleModel.id)
+      ? BpmTaskStatusEnum.APPROVE
+      : BpmTaskStatusEnum.NOT_START;
+    simpleModel.conditionNodes?.forEach((node) => {
+      setSimpleModelNodeTaskStatus(
+        node,
+        processStatus,
+        rejectedTaskActivityIds,
+        unfinishedTaskActivityIds,
+        finishedActivityIds,
+        finishedSequenceFlowActivityIds,
+      );
+    });
+  }
+
+  setSimpleModelNodeTaskStatus(
+    simpleModel.childNode,
+    processStatus,
+    rejectedTaskActivityIds,
+    unfinishedTaskActivityIds,
+    finishedActivityIds,
+    finishedSequenceFlowActivityIds,
+  );
+};
+</script>
 <template>
-  <div>
-    <h1>Simple BPM Viewer</h1>
+  <div v-loading="loading">
+    <SimpleProcessViewer
+      :flow-node="simpleModel"
+      :tasks="tasks"
+      :process-instance="processInstance"
+    />
   </div>
 </template>
+
+<style lang="scss" scoped></style>