diff --git a/src/api/upload.js b/src/api/upload.js
index b2ec6f3..18c3eb6 100644
--- a/src/api/upload.js
+++ b/src/api/upload.js
@@ -12,10 +12,11 @@ import request from './request'
 /**
  * 获取上传状态
  * @param {string} group - 组别标识
- * @returns {Promise} { submitted, deadline, canSubmit }
+ * @param {Object} [config] - 透传给 axios 的配置（如 { silent: true } 抑制拦截器报错）
+ * @returns {Promise} { submitted, deadline, canSubmit, canUpload, teamLocked, teamLockMessage, teamFiles, ... }
  */
-export function getUploadStatus(group) {
-  return request.get(`/upload/${group}/status`)
+export function getUploadStatus(group, config = {}) {
+  return request.get(`/upload/${group}/status`, config)
 }
 
 /**
diff --git a/src/views/Admin.vue b/src/views/Admin.vue
index 4a7ea88..29bbf32 100644
--- a/src/views/Admin.vue
+++ b/src/views/Admin.vue
@@ -740,6 +740,24 @@
           </div>
           <el-table :data="pagedSubmissions" stripe v-loading="submissionsLoading" class="admin-table">
             <el-table-column prop="name" label="选手姓名" width="120" />
+            <!-- R190：小组编号 / 作品目录。
+                 展示值 = 后端落盘用的目录名（teamFolder），与「批量下载」压缩包内的子目录
+                 以及「单组压缩包」文件名**完全同源**，管理人员据此对得上号。 -->
+            <el-table-column label="小组编号 / 作品目录" width="240">
+              <template #default="{ row }">
+                <div class="team-cell">
+                  <span class="team-no" :title="row.teamFolder">{{ row.teamFolder }}</span>
+                  <el-button
+                    text
+                    type="primary"
+                    size="small"
+                    :loading="row._zipLoading"
+                    :disabled="!row.files || row.files.length === 0"
+                    v-guard="() => downloadTeamZip(row)"
+                  >下载本组压缩包</el-button>
+                </div>
+              </template>
+            </el-table-column>
             <el-table-column label="上传文件 / 评分" min-width="420">
               <template #default="{ row }">
                 <div v-for="f in row.files" :key="f.id" class="work-file-row">
@@ -4193,6 +4211,11 @@ async function fetchSubmissions() {
       idNumber: s.idNumber,
       phone: s.phone,
       group: s.group,
+      // R190：小组维度字段（后端 getWorks 已按 (group, teamUid) 解析，前端只展示）
+      teamUid: s.teamUid === undefined ? null : s.teamUid,
+      teamNumber: s.teamNumber || null,
+      teamFolder: s.teamFolder || '未编组',
+      aggregationUid: s.aggregationUid === undefined ? null : s.aggregationUid,
       files: (s.files || []).map(f => ({ ...f, _score: f.score != null ? Number(f.score) : null })),
     }))
   } catch (e) { console.warn('获取作品列表失败', e) } finally { submissionsLoading.value = false }
@@ -4257,6 +4280,31 @@ async function batchDownloadWorks() {
   })
 }
 
+/**
+ * 下载「单个小组」作品压缩包（R190）
+ *
+ * 【业务来源】评分时两个文件分开下载容易混乱 ⇒ 一个小组一个压缩包，包内平铺该组文件。
+ * 定位键优先级：teamUid（组内全部成员）→ aggregationUid（无队伍号时退化为单人）。
+ * 🔴 与后端 `teamZip()` 的定位口径保持一致，⛔ 不在此处按姓名/编号自行匹配。
+ */
+async function downloadTeamZip(row) {
+  const group = submissionGroup.value
+  if (!group || row._zipLoading) return
+  const q = new URLSearchParams()
+  if (row.teamUid !== null && row.teamUid !== undefined) q.set('teamUid', row.teamUid)
+  else if (row.aggregationUid !== null && row.aggregationUid !== undefined) q.set('aggregationUid', row.aggregationUid)
+  const suffix = q.toString() ? `?${q.toString()}` : ''
+  row._zipLoading = true
+  try {
+    await safeDownload(`/api/admin/team-zip/${group}${suffix}`, {
+      fallbackName: `${row.teamFolder || '作品'}_作品.zip`,
+      timeout: 300000,
+    })
+  } finally {
+    row._zipLoading = false
+  }
+}
+
 // 批量保存评分（按文件聚合到选手的 wordScore / pptScore）
 async function batchSaveWorkScores() {
   try {
@@ -5503,6 +5551,17 @@ onMounted(async () => {
 .preview-file-name { color: #303133; font-weight: 600; margin-bottom: 8px; }
 .work-summary { color: #606266; font-size: 13px; margin-left: 8px; }
 
+/* R190：小组编号 / 作品目录列 */
+.team-cell { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
+.team-no {
+  max-width: 210px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  color: #303133;
+  font-weight: 500;
+}
+
 /* ==================== 统计卡片 ==================== */
 .stats-row { margin-bottom: 20px; }
 
diff --git a/src/views/Competition.vue b/src/views/Competition.vue
index 2fc9e4b..82599c4 100644
--- a/src/views/Competition.vue
+++ b/src/views/Competition.vue
@@ -27,6 +27,34 @@
           <template #title>本组别无客观题：先选择文件并确认无误，再点击「上传所选文件」提交</template>
           支持 docx / pdf / ppt / zip。规则：① zip 须单独上传（与任何其他文件互斥，自动覆盖）；② pdf 与 docx 相互覆盖，只能保留其一；③ 若需同时提交文档与演示稿，请选「pdf + ppt」或「docx + ppt」组合。zip 上限 200MB，其余格式上限 100MB。
         </el-alert>
+
+        <!-- R190：小组作品状态（组内互斥）—— 组内已有人上传后，其他成员不能再传。
+             文案直接取后端 teamLockMessage，⛔ 前端不另拼一套口径（避免与后端判定漂移）。 -->
+        <div
+          v-if="teamPanelVisible"
+          class="team-status-panel"
+          :class="{ 'is-locked': teamLocked }"
+        >
+          <div class="team-status-head">
+            <span class="team-status-title">
+              <template v-if="teamLocked">本组作品已由其他成员上传，您不能再上传</template>
+              <template v-else-if="uploadStatus.teamSubmitted">本组作品已由您上传，截止前可随时替换</template>
+              <template v-else>本组尚无人上传作品</template>
+            </span>
+            <el-tag v-if="uploadStatus.teamNumber" size="small" type="info">小组编号 {{ uploadStatus.teamNumber }}</el-tag>
+            <el-tag v-if="uploadStatus.memberCount > 1" size="small" type="info">组内 {{ uploadStatus.memberCount }} 人</el-tag>
+          </div>
+          <div v-if="uploadStatus.teamLockMessage" class="team-status-msg">{{ uploadStatus.teamLockMessage }}</div>
+          <div v-if="teamSharedFiles.length" class="team-status-files">
+            <div class="pending-list-title">组内已上传文件：</div>
+            <div v-for="(f, i) in teamSharedFiles" :key="i" class="team-status-file">
+              <span class="uploaded-name">{{ f.fileName }}</span>
+              <el-tag size="small" :type="categoryTagType(categoryOf(f.fileName))">{{ categoryLabel(categoryOf(f.fileName)) }}</el-tag>
+              <span class="team-status-uploader">上传者：{{ f.uploaderName || '组内成员' }}{{ f.isMine ? '（我）' : '' }}</span>
+            </div>
+          </div>
+        </div>
+
         <el-upload
           ref="uploadRef"
           :auto-upload="false"
@@ -34,6 +62,7 @@
           :accept="'.doc,.docx,.pdf,.ppt,.pptx,.zip'"
           :file-list="uploadFileList"
           :on-change="onUploadFileChange"
+          :disabled="teamLocked"
           multiple
           drag
           class="upload-drag"
@@ -67,9 +96,19 @@
         </div>
 
         <div class="upload-actions">
-          <el-button type="primary" :loading="uploading" :disabled="pendingUploadFiles.length === 0 || !uploadComboValid || hasOverLimitFile" v-guard="() => submitUploadFiles()">上传所选文件</el-button>
+          <el-button type="primary" :loading="uploading" :disabled="teamLocked || pendingUploadFiles.length === 0 || !uploadComboValid || hasOverLimitFile" v-guard="() => submitUploadFiles()">上传所选文件</el-button>
           <el-button @click="clearUploadFiles" :disabled="uploadFileList.length === 0">清空待上传</el-button>
         </div>
+        <!-- 被组锁时，明确告知「为什么按钮点不动」，避免用户以为是页面故障 -->
+        <el-alert
+          v-if="teamLocked"
+          type="warning"
+          :closable="false"
+          show-icon
+          style="margin-top:12px"
+          title="组内作品唯一：本组已有成员上传，您无法再上传"
+          description="如需替换作品，请联系上传者本人操作（仅首个上传者可在截止前替换）。"
+        />
 
         <el-divider v-if="uploadedWorks.length" />
         <div v-if="uploadedWorks.length" class="uploaded-list">
@@ -396,6 +435,31 @@ const uploadFileList = ref([]) // el-upload 绑定列表
 const uploadedWorks = ref([])
 const uploadRef = ref(null)
 
+// ---------- R190：小组作品状态（组内互斥）----------
+// 后端 `GET /api/upload/:group/status` 是组锁判定的**唯一权威**，前端只负责展示：
+// teamLocked / teamLockMessage / teamFiles 等一律原样取用，⛔ 不在前端重算一套规则
+//（重算必然与后端漂移，且学生端与下载端的「谁是归属人」会打架）。
+const uploadStatus = ref({
+  submitted: false,
+  canUpload: true,
+  deadlineValid: true,
+  teamNumber: null,
+  folderName: '',
+  memberCount: 1,
+  teamSubmitted: false,
+  teamOwnerName: null,
+  isTeamOwner: false,
+  teamLocked: false,
+  teamLockMessage: null,
+  teamFiles: [],
+})
+const teamLocked = computed(() => !!uploadStatus.value.teamLocked)
+// 有小组编号 or 组内多于一人时展示小组状态面板；独立参赛者保持原界面不变
+const teamPanelVisible = computed(() => !!uploadStatus.value.teamNumber || uploadStatus.value.memberCount > 1)
+// 被锁时才展示「组内已上传文件」——归属人（本人）在下方「已上传文件」里已有可删除列表，
+// 两处同列会重复且按钮语义不同，容易误删。
+const teamSharedFiles = computed(() => (teamLocked.value ? (uploadStatus.value.teamFiles || []) : []))
+
 const ZIP_MAX = 200 * 1024 * 1024
 const OTHER_MAX = 100 * 1024 * 1024
 
@@ -483,7 +547,8 @@ async function submitUploadFiles() {
     ElMessage.success('上传成功，作品已提交')
     uploadFileList.value = []
     uploadRef.value?.clearFiles?.()
-    await fetchUploadedWorks()
+    // 上传成功后必须同步组锁状态：归属人变成本人、teamSubmitted 变 true（R190）
+    await Promise.all([fetchUploadedWorks(), fetchUploadStatus()])
     examStore.stopExam()
   } catch {
     // 失败提示由响应拦截器统一给出，此处不再重复弹窗（同族双弹）
@@ -510,7 +575,12 @@ async function deleteUploadedWork(w, silent = false) {
   try {
     await uploadApi.deleteWork(authStore.userGroup, w.id)
     uploadedWorks.value = uploadedWorks.value.filter(x => x.id !== w.id)
-    if (!silent) ElMessage.success('已删除')
+    // 🔴 只在「用户手动删除」时刷新组锁状态：silent=true 的批量删除是 submitUploadFiles
+    //    的中间步骤，此时并发刷新可能在上传完成后才返回旧快照，把面板刷回陈旧结论。
+    if (!silent) {
+      ElMessage.success('已删除')
+      fetchUploadStatus()
+    }
   } catch {
     // 失败提示由响应拦截器统一给出，此处不再重复弹窗（同族双弹）
   } finally {
@@ -526,6 +596,31 @@ async function fetchUploadedWorks() {
   } catch (e) { /* ignore */ }
 }
 
+/**
+ * 拉取小组提交状态（R190）。
+ * 🔴 失败**不阻断**上传面板：状态查询只是辅助展示，真正的上传校验在后端（6006）。
+ *    用 silent 抑制拦截器提示，避免辅助查询失败时给考生弹一条看不懂的报错。
+ */
+async function fetchUploadStatus() {
+  try {
+    const d = (await uploadApi.getUploadStatus(authStore.userGroup, { silent: true })) || {}
+    uploadStatus.value = {
+      submitted: !!d.submitted,
+      canUpload: d.canUpload !== false,
+      deadlineValid: d.deadlineValid !== false,
+      teamNumber: d.teamNumber || null,
+      folderName: d.folderName || '',
+      memberCount: Number(d.memberCount) || 1,
+      teamSubmitted: !!d.teamSubmitted,
+      teamOwnerName: d.teamOwnerName || null,
+      isTeamOwner: !!d.isTeamOwner,
+      teamLocked: !!d.teamLocked,
+      teamLockMessage: d.teamLockMessage || null,
+      teamFiles: Array.isArray(d.teamFiles) ? d.teamFiles : [],
+    }
+  } catch (e) { /* 辅助状态查询失败保持默认（不锁），真正拦截在后端 */ }
+}
+
 // ==================== 状态 ====================
 
 const loading = ref(true)
@@ -1078,7 +1173,8 @@ onMounted(async () => {
       // 提交组（本科/教师）：无客观题，进入「答案文件上传」模式并启动提交倒计时
       uploadPanelLoading.value = true
       try {
-        await fetchUploadedWorks()
+        // 两个查询互不依赖，并行发起：作品列表 + 组锁状态（R190）
+        await Promise.all([fetchUploadedWorks(), fetchUploadStatus()])
       } finally {
         uploadPanelLoading.value = false
       }
@@ -1483,6 +1579,59 @@ onUnmounted(() => {
   justify-content: space-between;
 }
 
+/* ==================== R190：小组作品状态面板 ==================== */
+.team-status-panel {
+  border: 1px solid #c6e2ff;
+  background: #f0f7ff;
+  border-radius: 6px;
+  padding: 0.75rem 1rem;
+  margin-bottom: 1rem;
+}
+.team-status-panel.is-locked {
+  border-color: #f5dab1;
+  background: #fdf6ec;
+}
+.team-status-head {
+  display: flex;
+  align-items: center;
+  flex-wrap: wrap;
+  gap: 0.5rem;
+}
+.team-status-title {
+  font-size: 0.9rem;
+  font-weight: 600;
+  color: #303133;
+}
+.team-status-panel.is-locked .team-status-title {
+  color: #b88230;
+}
+.team-status-msg {
+  margin-top: 0.5rem;
+  font-size: 0.85rem;
+  line-height: 1.6;
+  color: #606266;
+}
+.team-status-files {
+  margin-top: 0.75rem;
+}
+.team-status-file {
+  display: flex;
+  align-items: center;
+  flex-wrap: wrap;
+  gap: 0.5rem;
+  padding: 0.4rem 0.6rem;
+  border-radius: 4px;
+  background: rgba(255, 255, 255, 0.7);
+  font-size: 0.85rem;
+}
+.team-status-file + .team-status-file {
+  margin-top: 0.4rem;
+}
+.team-status-uploader {
+  color: #909399;
+  font-size: 0.8rem;
+}
+
 /* 超出上传大小限制：明显的高亮警告样式（Issue ②） */
 .file-over-limit {
   background: #fef0f0;