diff --git a/src/views/gh/improvementProposal/components/ImprovementProposalBPMForm.vue b/src/views/gh/improvementProposal/components/ImprovementProposalBPMForm.vue
index d52df23..6aaae70 100644
--- a/src/views/gh/improvementProposal/components/ImprovementProposalBPMForm.vue
+++ b/src/views/gh/improvementProposal/components/ImprovementProposalBPMForm.vue
@@ -88,8 +88,8 @@
           <template v-if="isTask('Task_improve005')">
             <a-form-item label="我的投票">
               <a-space v-if="currentVote">
-                <a-button :type="currentVote.voteResult === 'agree' ? 'primary' : 'default'" :disabled="voteLocked" :loading="savingVote" @click="saveVoteDraft('agree')">投票通过</a-button>
-                <a-button danger :type="currentVote.voteResult === 'disagree' ? 'primary' : 'default'" :disabled="voteLocked" :loading="savingVote" @click="saveVoteDraft('disagree')">投票反对</a-button>
+                <a-button :type="currentVote.voteResult === 'agree' ? 'primary' : 'default'" :loading="savingVote" @click="confirmInstituteVote('agree')">投票通过</a-button>
+                <a-button danger :type="currentVote.voteResult === 'disagree' ? 'primary' : 'default'" :loading="savingVote" @click="confirmInstituteVote('disagree')">投票反对</a-button>
                 <span>{{ voteResultLabel(currentVote) }}</span>
               </a-space>
               <span v-else class="form-help">当前用户不在所级评议投票名单中。</span>
@@ -109,7 +109,9 @@
           </template>
         </a-form>
 
+        <!-- 所级投票以“投票即办理”完成，避免通用“同意/退回”与投票结果产生歧义。 -->
         <TaskHandleInnerContent
+          v-if="!isTask('Task_improve005')"
           :form-data="formData"
           :claim="claim"
           :before-handle="saveNodeAction"
@@ -178,7 +180,6 @@
   import SUploadFile from '/@/components/semri/fileComponent/SUploadFile.vue';
   import TaskHandleInnerContent from '/@/views/super/bpm/process/personalOffice/myHandleTask/content/TaskHandleInnerContent.vue';
   import {
-    castInstituteVote,
     queryDataById,
     queryInstituteVoteCandidates,
     queryImprovementInstituteVoteListByMainId,
@@ -198,7 +199,7 @@
     claim: { type: Boolean, default: false },
   });
   const emit = defineEmits(['success', 'claimSuccess']);
-  const { createMessage } = useMessage();
+  const { createMessage, createConfirm } = useMessage();
   const userStore = useUserStore();
   const loading = ref(false);
   const savingScore = ref(false);
@@ -257,7 +258,6 @@
     return awardOptions.filter((item) => Number(item.value) >= Number(leaderAwardBase.value));
   });
   const currentVote = computed(() => voteRows.value.find((item) => String(item.voterId) === currentUserId.value));
-  const voteLocked = computed(() => currentVote.value?.voteStatus === 'voted');
 
   watch(
     () => [processInfo.value.mainId, processInfo.value.processInstanceId, processInfo.value.taskId, processInfo.value.taskDefKey],
@@ -351,13 +351,6 @@
         }
         await saveInstituteVoteMembers(actionPayload({ voterIds: selectedInstituteVoterIds.value }));
       }
-      if (isTask('Task_improve005')) {
-        if (!currentVote.value?.voteResult) {
-          createMessage.warning('请先选择投票通过或投票反对');
-          return false;
-        }
-        await submitInstituteVote(actionPayload());
-      }
       if (isTask('Task_improve006')) {
         if (!finalAward.value) {
           createMessage.warning('请选择最终奖项');
@@ -372,14 +365,27 @@
     }
   }
 
-  async function saveVoteDraft(voteResult: string) {
+  function confirmInstituteVote(voteResult: 'agree' | 'disagree') {
+    const voteLabel = voteResult === 'agree' ? '通过' : '反对';
+    createConfirm({
+      iconType: 'warning',
+      title: '确认投票',
+      content: `确认提交投票${voteLabel}吗？`,
+      okText: '确认提交',
+      cancelText: '取消',
+      onOk: () => submitInstituteVoteAndComplete(voteResult),
+    });
+  }
+
+  async function submitInstituteVoteAndComplete(voteResult: 'agree' | 'disagree') {
     savingVote.value = true;
     try {
-      await castInstituteVote(actionPayload({ voteResult }));
-      createMessage.success('投票已保存，提交办理前可修改');
-      await loadProposal();
+      // 后端在锁定投票后复用通用流程办理服务完成当前 Task5 任务。
+      await submitInstituteVote(actionPayload({ voteResult }));
+      createMessage.success('投票提交成功');
+      emit('success');
     } catch (error: any) {
-      createMessage.warning(error?.message || '投票失败');
+      createMessage.warning(error?.message || '投票提交失败');
     } finally {
       savingVote.value = false;
     }
@@ -444,8 +450,6 @@
 
   function voteResultLabel(vote: Recordable) {
     if (vote.voteStatus !== 'voted') {
-      if (vote.voteResult === 'agree') return '已选择投票通过，待提交办理';
-      if (vote.voteResult === 'disagree') return '已选择投票反对，待提交办理';
       return '待投票';
     }
     return vote.voteResult === 'agree' ? '已投同意票' : '已投不同意票';