diff --git a/backend/pipeline/dataset_api.py b/backend/pipeline/dataset_api.py
index e41211c..8bacae8 100644
--- a/backend/pipeline/dataset_api.py
+++ b/backend/pipeline/dataset_api.py
@@ -1,4 +1,4 @@
-"""库内数据浏览 API：排序、价格、类目（§5 矩阵）与店铺名筛选。"""
+"""库内数据浏览 API：排序、价格、类目（§5 矩阵）与店铺（精确）筛选。"""
 from __future__ import annotations
 
 from typing import Any
@@ -61,9 +61,9 @@ def report_group_from_request(request: Request) -> str:
     return (request.query_params.get("report_group") or "").strip()
 
 
-def shop_q_from_request(request: Request) -> str:
-    """店铺名模糊匹配；查询参数 ``shop_q``。"""
-    return (request.query_params.get("shop_q") or "").strip()
+def shop_from_request(request: Request) -> str:
+    """店铺名精确匹配（与摘要 ``shop_options`` 中某项一致）；查询参数 ``shop``。"""
+    return (request.query_params.get("shop") or "").strip()
 
 
 def detail_category_q_from_request(request: Request) -> str:
@@ -73,7 +73,7 @@ def detail_category_q_from_request(request: Request) -> str:
 def filter_echo(
     *,
     report_group: str,
-    shop_q: str,
+    shop: str,
     price_min: float | None,
     price_max: float | None,
     detail_category_q: str,
@@ -82,7 +82,7 @@ def filter_echo(
 ) -> dict[str, Any]:
     return {
         "report_group": report_group or None,
-        "shop_q": shop_q or None,
+        "shop": shop or None,
         "price_min": price_min,
         "price_max": price_max,
         "detail_category_q": detail_category_q or None,
@@ -95,9 +95,9 @@ def apply_search_filters(qs: QuerySet, request: Request) -> QuerySet:
     rg = report_group_from_request(request)
     if rg:
         qs = qs.filter(Q(matrix_group_label=rg) | Q(leaf_category=rg))
-    sq = shop_q_from_request(request)
-    if sq:
-        qs = qs.filter(shop_name__icontains=sq)
+    sp = shop_from_request(request)
+    if sp:
+        qs = qs.filter(shop_name=sp)
     pmin, pmax = price_bounds_from_request(request)
     if pmin is not None:
         qs = qs.filter(price_value__gte=pmin)
@@ -131,9 +131,9 @@ def apply_detail_filters(qs: QuerySet, request: Request) -> QuerySet:
     rg = report_group_from_request(request)
     if rg:
         qs = qs.filter(matrix_group_label=rg)
-    sq = shop_q_from_request(request)
-    if sq:
-        qs = qs.filter(detail_shop_name__icontains=sq)
+    sp = shop_from_request(request)
+    if sp:
+        qs = qs.filter(detail_shop_name=sp)
     q = detail_category_q_from_request(request)
     if q:
         qs = qs.filter(detail_category_path__icontains=q)
@@ -170,11 +170,9 @@ def apply_merged_filters(qs: QuerySet, request: Request) -> QuerySet:
     rg = report_group_from_request(request)
     if rg:
         qs = qs.filter(matrix_group_label=rg)
-    sq = shop_q_from_request(request)
-    if sq:
-        qs = qs.filter(
-            Q(shop_name__icontains=sq) | Q(detail_shop_name__icontains=sq)
-        )
+    sp = shop_from_request(request)
+    if sp:
+        qs = qs.filter(Q(shop_name=sp) | Q(detail_shop_name=sp))
     q = detail_category_q_from_request(request)
     if q:
         qs = qs.filter(detail_category_path__icontains=q)
diff --git a/backend/pipeline/views.py b/backend/pipeline/views.py
index cebe406..dbf620b 100644
--- a/backend/pipeline/views.py
+++ b/backend/pipeline/views.py
@@ -32,7 +32,7 @@ from .dataset_api import (
     parse_sort_meta,
     price_bounds_from_request,
     report_group_from_request,
-    shop_q_from_request,
+    shop_from_request,
 )
 from .dataset_nonempty import (
     comment_columns_for_api,
@@ -777,6 +777,48 @@ def _detail_category_path_options(job: PipelineJob) -> list[str]:
     )
 
 
+def _shop_options_for_job(job: PipelineJob) -> list[str]:
+    """任务内各表出现的店铺名去重排序（搜索 shop_name、商详/宽表店铺列）。"""
+    names: set[str] = set()
+    for v in (
+        JdJobSearchRow.objects.filter(job=job)
+        .exclude(shop_name="")
+        .values_list("shop_name", flat=True)
+        .distinct()
+    ):
+        t = str(v).strip()
+        if t:
+            names.add(t)
+    for v in (
+        JdJobDetailRow.objects.filter(job=job)
+        .exclude(detail_shop_name="")
+        .values_list("detail_shop_name", flat=True)
+        .distinct()
+    ):
+        t = str(v).strip()
+        if t:
+            names.add(t)
+    for v in (
+        JdJobMergedRow.objects.filter(job=job)
+        .exclude(shop_name="")
+        .values_list("shop_name", flat=True)
+        .distinct()
+    ):
+        t = str(v).strip()
+        if t:
+            names.add(t)
+    for v in (
+        JdJobMergedRow.objects.filter(job=job)
+        .exclude(detail_shop_name="")
+        .values_list("detail_shop_name", flat=True)
+        .distinct()
+    ):
+        t = str(v).strip()
+        if t:
+            names.add(t)
+    return sorted(names)
+
+
 class JobDatasetSummaryView(APIView):
     """任务在库中的搜索/详情/评价行数（入库后可用）。"""
 
@@ -796,6 +838,7 @@ class JobDatasetSummaryView(APIView):
                 "comment_columns": comment_columns_for_api(job),
                 "merged_columns": merged_columns_for_api(job),
                 "category_options": _report_group_options_for_job(job),
+                "shop_options": _shop_options_for_job(job),
                 "detail_category_path_options": _detail_category_path_options(job),
                 "dataset_sort_help": {
                     "search": sorted(SEARCH_SORT_FIELDS),
@@ -814,7 +857,7 @@ class JobDatasetSearchView(APIView):
         sort, desc = parse_sort_meta(request)
         sort_eff = sort if sort in SEARCH_SORT_FIELDS else "row_index"
         rg = report_group_from_request(request)
-        sq = shop_q_from_request(request)
+        sp = shop_from_request(request)
         pmin, pmax = price_bounds_from_request(request)
         dcq = detail_category_q_from_request(request)
         qs = JdJobSearchRow.objects.filter(job=job)
@@ -830,7 +873,7 @@ class JobDatasetSearchView(APIView):
                 "page_size": page_size,
                 "filters": filter_echo(
                     report_group=rg,
-                    shop_q=sq,
+                    shop=sp,
                     price_min=pmin,
                     price_max=pmax,
                     detail_category_q=dcq,
@@ -849,7 +892,7 @@ class JobDatasetDetailView(APIView):
         sort, desc = parse_sort_meta(request)
         sort_eff = sort if sort in DETAIL_SORT_FIELDS else "row_index"
         rg = report_group_from_request(request)
-        sq = shop_q_from_request(request)
+        sp = shop_from_request(request)
         pmin, pmax = price_bounds_from_request(request)
         dcq = detail_category_q_from_request(request)
         qs = JdJobDetailRow.objects.filter(job=job)
@@ -865,7 +908,7 @@ class JobDatasetDetailView(APIView):
                 "page_size": page_size,
                 "filters": filter_echo(
                     report_group=rg,
-                    shop_q=sq,
+                    shop=sp,
                     price_min=pmin,
                     price_max=pmax,
                     detail_category_q=dcq,
@@ -906,7 +949,7 @@ class JobDatasetMergedView(APIView):
         sort, desc = parse_sort_meta(request)
         sort_eff = sort if sort in MERGED_SORT_FIELDS else "row_index"
         rg = report_group_from_request(request)
-        sq = shop_q_from_request(request)
+        sp = shop_from_request(request)
         pmin, pmax = price_bounds_from_request(request)
         dcq = detail_category_q_from_request(request)
         qs = JdJobMergedRow.objects.filter(job=job)
@@ -922,7 +965,7 @@ class JobDatasetMergedView(APIView):
                 "page_size": page_size,
                 "filters": filter_echo(
                     report_group=rg,
-                    shop_q=sq,
+                    shop=sp,
                     price_min=pmin,
                     price_max=pmax,
                     detail_category_q=dcq,
diff --git a/frontend/src/components/JobDatasetModal.vue b/frontend/src/components/JobDatasetModal.vue
index 47ffaaf..5c6a89f 100644
--- a/frontend/src/components/JobDatasetModal.vue
+++ b/frontend/src/components/JobDatasetModal.vue
@@ -42,7 +42,8 @@ const sortField = ref('row_index')
 const sortOrder = ref('asc')
 /** 类目（§5 矩阵），对应接口参数 report_group */
 const reportGroup = ref('')
-const shopQ = ref('')
+/** 店铺名精确筛选，对应接口参数 shop；选项来自摘要 shop_options */
+const selectedShop = ref('')
 const priceMin = ref('')
 const priceMax = ref('')
 const detailCategoryQ = ref('')
@@ -72,6 +73,7 @@ const sortOptions = computed(() => {
 })
 
 const categoryOptions = computed(() => summary.value?.category_options || [])
+const shopOptions = computed(() => summary.value?.shop_options || [])
 
 const displayColumns = computed(() => {
   const s = summary.value
@@ -163,7 +165,7 @@ async function refreshList() {
             sort: sortField.value,
             order: sortOrder.value,
             reportGroup: reportGroup.value.trim(),
-            shopQ: shopQ.value.trim(),
+            shop: selectedShop.value.trim(),
             priceMin: priceMin.value,
             priceMax: priceMax.value,
             detailCategoryQ: detailCategoryQ.value.trim(),
@@ -198,7 +200,7 @@ watch(
       sortField.value = 'row_index'
       sortOrder.value = 'asc'
       reportGroup.value = ''
-      shopQ.value = ''
+      selectedShop.value = ''
       priceMin.value = ''
       priceMax.value = ''
       detailCategoryQ.value = ''
@@ -217,7 +219,7 @@ watch(tab, () => {
   sortField.value = 'row_index'
   sortOrder.value = 'asc'
   reportGroup.value = ''
-  shopQ.value = ''
+  selectedShop.value = ''
   priceMin.value = ''
   priceMax.value = ''
   detailCategoryQ.value = ''
@@ -228,7 +230,7 @@ watch(
     sortField,
     sortOrder,
     reportGroup,
-    shopQ,
+    selectedShop,
     priceMin,
     priceMax,
     detailCategoryQ,
@@ -248,7 +250,7 @@ watch(
     sortField,
     sortOrder,
     reportGroup,
-    shopQ,
+    selectedShop,
     priceMin,
     priceMax,
     detailCategoryQ,
@@ -434,20 +436,18 @@ async function runExport(format) {
             </select>
           </label>
           <label class="filter-item">
-            类目（§5 矩阵）
+            类目
             <select v-model="reportGroup" class="filter-select wide">
               <option value="">全部</option>
               <option v-for="g in categoryOptions" :key="g" :value="g">{{ g }}</option>
             </select>
           </label>
           <label class="filter-item">
-            店铺名包含
-            <input
-              v-model="shopQ"
-              type="search"
-              class="filter-input wide"
-              placeholder="模糊匹配店铺名"
-            />
+            店铺
+            <select v-model="selectedShop" class="filter-select wide">
+              <option value="">全部</option>
+              <option v-for="s in shopOptions" :key="s" :value="s">{{ s }}</option>
+            </select>
           </label>
           <template v-if="tab === 'detail' || tab === 'merged'">
             <label class="filter-item">
diff --git a/frontend/src/composables/useJobs.js b/frontend/src/composables/useJobs.js
index 3829f85..6fcf1b9 100644
--- a/frontend/src/composables/useJobs.js
+++ b/frontend/src/composables/useJobs.js
@@ -209,9 +209,9 @@ export function jobDatasetPageUrl(jobId, kind, page = 1, pageSize = 50, opts = {
     o.reportGroup ?? o.report_group ?? o.categoryNormId ?? o.category_norm_id
   if (rg !== undefined && rg !== null && String(rg).trim() !== '')
     p.set('report_group', String(rg).trim())
-  const shopQ = o.shopQ ?? o.shop_q
-  if (shopQ !== undefined && shopQ !== null && String(shopQ).trim() !== '')
-    p.set('shop_q', String(shopQ).trim())
+  const shop = o.shop ?? o.shop_name ?? o.shopQ ?? o.shop_q
+  if (shop !== undefined && shop !== null && String(shop).trim() !== '')
+    p.set('shop', String(shop).trim())
   const pmin = o.priceMin ?? o.price_min
   if (pmin !== undefined && pmin !== null && String(pmin).trim() !== '')
     p.set('price_min', String(pmin).trim())