diff --git a/docs/DEVIATIONS.md b/docs/DEVIATIONS.md
index 7deb4c5..6bf2415 100644
--- a/docs/DEVIATIONS.md
+++ b/docs/DEVIATIONS.md
@@ -1718,3 +1718,13 @@ issue #3 未关闭，`feat/fix-3-downlink-deadlock` 未合入 `main`。下面是
    - 原因：原先 12 项备注写着未穷尽仍标通过，交付说明写成「通过 23」。  
    - 备选方案：为每个未测子项补验收用例（本波不做，避免为变绿放松断言）。  
    - 影响：汇总改为通过 19、部分通过 4（F03/F08/F21/F22）、失败 0。F19 仍引用仓库内 SDK 清单、本波不重跑。
+
+### 复审修复 R3-08
+
+1. **后台加人审计按实际插入数，全跳过不记 ok**  
+   - 日期：2026-09-30  
+   - 原条款：Gitea #72；`AdminAddMembers` 对已是成员与请求内重复编号静默跳过；审计用 `len(member_ids)-len(failed)` 当成功数。  
+   - 实际做法：`handleGroupAddMembers` 用加人前后 `group_members` 行数差得到 `added`；审计 `result` 用 `added` 与 `failed`（全跳过且无失败记 `noop`，不记 `ok`）；响应增加 `added`，`failed` 仍只含真正失败项。前端按 `added` 提示，已是成员不改成错误码。  
+   - 原因：全是已有成员时旧逻辑审计成 ok、界面提示已加人，实际插入 0 行。  
+   - 备选方案：把已是成员写入 `failed`（否决，会改变客户端错误语义）；扩展 `group.AddResult` 返回插入列表（可后续做，本波不改身份线接口）。  
+   - 影响：管理 API 加人成功体多 `added` 字段；契约文档示例仍写 `{"failed":[]}`，以本偏差为准。
diff --git a/internal/admin/groups.go b/internal/admin/groups.go
index 778b6e6..f5948dd 100644
--- a/internal/admin/groups.go
+++ b/internal/admin/groups.go
@@ -316,6 +316,13 @@ func (h *Handler) handleGroupAddMembers(w http.ResponseWriter, r *http.Request)
 		return
 	}
 
+	before, err := h.groupMemberCount(r.Context(), id)
+	if err != nil {
+		h.auditP(p, "group_add_members", id, "error", ip)
+		httpx.WriteError(w, http.StatusInternalServerError, "internal", "内部错误")
+		return
+	}
+
 	res, err := h.groups.AdminAddMembers(r.Context(), id, req.MemberIDs)
 	if err != nil {
 		h.writeGroupErr(w, p, "group_add_members", id, ip, err)
@@ -325,15 +332,29 @@ func (h *Handler) handleGroupAddMembers(w http.ResponseWriter, r *http.Request)
 	if failed == nil {
 		failed = []group.MemberFail{}
 	}
-	okN := len(req.MemberIDs) - len(failed)
-	if okN < 0 {
-		okN = 0
+
+	after, err := h.groupMemberCount(r.Context(), id)
+	if err != nil {
+		h.auditP(p, "group_add_members", id, "error", ip)
+		httpx.WriteError(w, http.StatusInternalServerError, "internal", "内部错误")
+		return
 	}
-	h.auditPD(p, "group_add_members", id, batchAuditResult(okN, len(failed)), ip, map[string]any{
+	added := after - before
+	if added < 0 {
+		added = 0
+	}
+
+	// 已是成员/请求内重复编号会静默跳过，不算失败；审计用实际插入数，避免全跳过写成 ok。
+	result := batchAuditResult(added, len(failed))
+	if added == 0 && len(failed) == 0 {
+		result = "noop"
+	}
+	h.auditPD(p, "group_add_members", id, result, ip, map[string]any{
 		"members": req.MemberIDs,
 		"failed":  failed,
+		"added":   added,
 	})
-	httpx.WriteOK(w, map[string]any{"failed": failed})
+	httpx.WriteOK(w, map[string]any{"failed": failed, "added": added})
 }
 
 func (h *Handler) handleGroupRemoveMember(w http.ResponseWriter, r *http.Request) {
@@ -413,6 +434,13 @@ func (h *Handler) groupOwner(ctx context.Context, groupID string) (string, error
 	return owner, err
 }
 
+func (h *Handler) groupMemberCount(ctx context.Context, groupID string) (int, error) {
+	var n int
+	err := h.db.Read.QueryRowContext(ctx,
+		`SELECT COUNT(*) FROM group_members WHERE group_id = ?`, groupID).Scan(&n)
+	return n, err
+}
+
 func (h *Handler) groupSummary(ctx context.Context, groupID string) (map[string]any, error) {
 	var name, owner string
 	var created int64
diff --git a/internal/admin/h02_test.go b/internal/admin/h02_test.go
index 7f6d9af..b6e7931 100644
--- a/internal/admin/h02_test.go
+++ b/internal/admin/h02_test.go
@@ -262,6 +262,7 @@ func TestH02BatchPartialImportAndGroups(t *testing.T) {
 	insertEndpoint(t, db, "keep-1", "admin", true, false)
 	insertEndpoint(t, db, "alice", "admin", true, false)
 	insertEndpoint(t, db, "bob", "admin", true, false)
+	insertEndpoint(t, db, "carol", "admin", true, false)
 
 	res := doReq(t, client, http.MethodPost, srv.URL+"/api/admin/endpoints/batch",
 		`{"ids":["keep-1","missing-ep"],"action":"disable"}`,
@@ -304,11 +305,24 @@ func TestH02BatchPartialImportAndGroups(t *testing.T) {
 	}
 
 	res = doReq(t, client, http.MethodPost, srv.URL+"/api/admin/groups/"+created.ID+"/members",
-		`{"member_ids":["keep-1","ghost-ep"]}`, csrf())
+		`{"member_ids":["carol","ghost-ep"]}`, csrf())
 	env = decodeEnv(t, res)
 	if res.StatusCode != http.StatusOK || !env.OK {
 		t.Fatalf("add members: %d %+v", res.StatusCode, env)
 	}
+	var addBody struct {
+		Failed []any `json:"failed"`
+		Added  int   `json:"added"`
+	}
+	if err := json.Unmarshal(env.Data, &addBody); err != nil {
+		t.Fatal(err)
+	}
+	if addBody.Added != 1 {
+		t.Fatalf("add response added=%d want 1", addBody.Added)
+	}
+	if len(addBody.Failed) != 1 {
+		t.Fatalf("add response failed=%v want 1", addBody.Failed)
+	}
 
 	res = doReq(t, client, http.MethodPost, srv.URL+"/api/admin/groups/"+created.ID+"/transfer",
 		`{"endpoint_id":"bob"}`, csrf())
@@ -346,8 +360,8 @@ func TestH02BatchPartialImportAndGroups(t *testing.T) {
 	if ad == nil {
 		t.Fatalf("add members missing detail: %v", add)
 	}
-	if add["result"] != "partial" && add["result"] != "failed" && add["result"] != "ok" {
-		t.Fatalf("add members result=%v", add["result"])
+	if add["result"] != "partial" {
+		t.Fatalf("add members result=%v want partial", add["result"])
 	}
 	if _, ok := ad["members"]; !ok {
 		t.Fatalf("add members missing members: %v", ad)
@@ -355,6 +369,9 @@ func TestH02BatchPartialImportAndGroups(t *testing.T) {
 	if _, ok := ad["failed"]; !ok {
 		t.Fatalf("add members missing failed: %v", ad)
 	}
+	if ad["added"] != float64(1) {
+		t.Fatalf("add members added=%v want 1", ad["added"])
+	}
 
 	tr := lastAuditByAction(t, recs, "group_transfer")
 	td, _ := tr["detail"].(map[string]any)
@@ -364,3 +381,70 @@ func TestH02BatchPartialImportAndGroups(t *testing.T) {
 
 	assertNoSecrets(t, auditBuf.String(), "csv-pass-secret-1", "csv-pass-secret-2", testPassword)
 }
+
+func TestH02AddMembersAllSkippedAuditNotOK(t *testing.T) {
+	_, auditBuf, db, srv, client := setupH02(t)
+	login(t, client, srv.URL)
+	insertEndpoint(t, db, "alice", "admin", true, false)
+	insertEndpoint(t, db, "bob", "admin", true, false)
+
+	res := doReq(t, client, http.MethodPost, srv.URL+"/api/admin/groups",
+		`{"name":"一组","owner_id":"alice","member_ids":["bob"]}`, csrf())
+	env := decodeEnv(t, res)
+	if res.StatusCode != http.StatusOK || !env.OK {
+		t.Fatalf("group create: %d %+v", res.StatusCode, env)
+	}
+	var created struct {
+		ID string `json:"id"`
+	}
+	if err := json.Unmarshal(env.Data, &created); err != nil {
+		t.Fatal(err)
+	}
+
+	auditBuf.Reset()
+	var before int
+	if err := db.Read.QueryRow(`SELECT COUNT(*) FROM group_members WHERE group_id = ?`, created.ID).Scan(&before); err != nil {
+		t.Fatal(err)
+	}
+
+	res = doReq(t, client, http.MethodPost, srv.URL+"/api/admin/groups/"+created.ID+"/members",
+		`{"member_ids":["bob","bob","alice"]}`, csrf())
+	env = decodeEnv(t, res)
+	if res.StatusCode != http.StatusOK || !env.OK {
+		t.Fatalf("add members: %d %+v", res.StatusCode, env)
+	}
+	var body struct {
+		Failed []any `json:"failed"`
+		Added  int   `json:"added"`
+	}
+	if err := json.Unmarshal(env.Data, &body); err != nil {
+		t.Fatal(err)
+	}
+	if len(body.Failed) != 0 {
+		t.Fatalf("failed=%v want empty (already members are not errors)", body.Failed)
+	}
+	if body.Added != 0 {
+		t.Fatalf("added=%d want 0", body.Added)
+	}
+
+	var after int
+	if err := db.Read.QueryRow(`SELECT COUNT(*) FROM group_members WHERE group_id = ?`, created.ID).Scan(&after); err != nil {
+		t.Fatal(err)
+	}
+	if after != before {
+		t.Fatalf("member rows before=%d after=%d want unchanged", before, after)
+	}
+
+	recs := parseSlogJSON(t, auditBuf)
+	add := lastAuditByAction(t, recs, "group_add_members")
+	if add["result"] == "ok" {
+		t.Fatalf("audit result must not be ok when all skipped: %v", add)
+	}
+	ad, _ := add["detail"].(map[string]any)
+	if ad == nil {
+		t.Fatalf("missing detail: %v", add)
+	}
+	if ad["added"] != float64(0) {
+		t.Fatalf("detail.added=%v want 0", ad["added"])
+	}
+}
diff --git a/web/src/api/admin.ts b/web/src/api/admin.ts
index 444114e..7ad6dc8 100644
--- a/web/src/api/admin.ts
+++ b/web/src/api/admin.ts
@@ -296,7 +296,7 @@ export function deleteGroup(id: string) {
 
 export function addGroupMembers(id: string, memberIds: string[]) {
   return run(() =>
-    requestAdmin<{ failed: GroupFailed[] }>(
+    requestAdmin<{ failed: GroupFailed[]; added: number }>(
       `/api/admin/groups/${encodeURIComponent(id)}/members`,
       {
         method: "POST",
diff --git a/web/src/api/mock.ts b/web/src/api/mock.ts
index c62de3e..de01a27 100644
--- a/web/src/api/mock.ts
+++ b/web/src/api/mock.ts
@@ -691,13 +691,14 @@ export const mockApi = {
     return {};
   },
 
-  async addGroupMembers(id: string, memberIds: string[]): Promise<{ failed: GroupFailed[] }> {
+  async addGroupMembers(id: string, memberIds: string[]): Promise<{ failed: GroupFailed[]; added: number }> {
     requireSession();
     const g = groups.find((x) => x.id === id);
     if (!g) {
       throw new ApiError("not_found", "群不存在", 404);
     }
     const failed: GroupFailed[] = [];
+    let added = 0;
     for (const mid of memberIds) {
       if (!endpoints.some((e) => e.id === mid)) {
         failed.push({ id: mid, code: "not_found" });
@@ -705,9 +706,10 @@ export const mockApi = {
       }
       if (!g.members.some((m) => m.id === mid)) {
         g.members.push({ id: mid, joined_at_ms: now() });
+        added++;
       }
     }
-    return { failed };
+    return { failed, added };
   },
 
   async removeGroupMember(id: string, endpointId: string): Promise<Record<string, never>> {
diff --git a/web/src/views/GroupsView.vue b/web/src/views/GroupsView.vue
index eafda09..70d3725 100644
--- a/web/src/views/GroupsView.vue
+++ b/web/src/views/GroupsView.vue
@@ -233,9 +233,15 @@ async function onAddMembers() {
   if (!ids.length) return;
   const res = await addGroupMembers(detail.value.id, ids);
   if (res.failed.length) {
-    message.warning(`部分失败：${formatFailed(res.failed)}`);
+    if (res.added > 0) {
+      message.warning(`已加入 ${res.added} 人，部分失败：${formatFailed(res.failed)}`);
+    } else {
+      message.warning(`部分失败：${formatFailed(res.failed)}`);
+    }
+  } else if (res.added === 0) {
+    message.info("没有新成员加入");
   } else {
-    message.success("已加人");
+    message.success(`已加人 ${res.added} 人`);
   }
   await loadDetail(detail.value.id);
   await load();