diff --git a/app/api/routers/rbac_org.py b/app/api/routers/rbac_org.py
index 4aa8a1c..e662e8e 100644
--- a/app/api/routers/rbac_org.py
+++ b/app/api/routers/rbac_org.py
@@ -6,11 +6,14 @@ import logging
 
 from fastapi import APIRouter, Depends, HTTPException
 from pydantic import BaseModel
+from sqlalchemy import select
 
 from ..dependencies import get_db, get_user_organizations, get_user_primary_org
 from ..schemas.org import OrgMemberAdd
 from ...rbac import require_roles
 from ...infrastructure.repositories import Database
+from ...infrastructure.oss import resolve_url
+from ...infrastructure.models import User
 from ...park import tenants as tnt
 
 log = logging.getLogger("rbac.org")
@@ -18,6 +21,28 @@ log = logging.getLogger("rbac.org")
 router = APIRouter(tags=["org"])
 
 
+async def _normalize_org_member(raw: dict) -> dict:
+    """统一机构/企业成员返回格式，确保前端 OrgMember 类型字段齐全。
+
+    前端期望字段：user_id, name, username, avatar, role, is_admin
+    企业成员(tnt.company_members)返回：id, username, nickname, avatar, role, is_admin
+    机构成员(db.org_members.list_for_org)返回：user_id, username, nickname, role, is_admin（无avatar）
+    """
+    user_id = str(raw.get("user_id") or raw.get("id") or "")
+    username = raw.get("username") or ""
+    nickname = raw.get("nickname") or ""
+    name = nickname or username or user_id
+    avatar = raw.get("avatar") or ""
+    return {
+        "user_id": user_id,
+        "name": name,
+        "username": username,
+        "avatar": resolve_url(avatar),
+        "role": raw.get("role") or "",
+        "is_admin": bool(raw.get("is_admin", False)),
+    }
+
+
 @router.get("/org/me", summary="当前组织信息")
 async def org_me(
     db: Database = Depends(get_db),
@@ -75,20 +100,55 @@ async def org_members(
     # 叠加制权限：operator 全量；本 org 的载体机构管理员；本企业的企业成员（org_id 亦可能是 company_id）
     caps = user.get("capabilities") or []
     if "operator" in caps:
-        pass
+        log.info(f"[org_members] operator access, org_id={org_id}, user_id={user['id']}")
     elif await db.org_members.is_admin(org_id, user["id"]):
-        pass
+        log.info(f"[org_members] org admin access, org_id={org_id}, user_id={user['id']}")
     elif await db.company_members.get(user["id"], org_id):
-        pass
+        log.info(f"[org_members] company member access, org_id={org_id}, user_id={user['id']}")
     else:
+        log.warning(f"[org_members] 403 forbidden, org_id={org_id}, user_id={user['id']}, caps={caps}")
         raise HTTPException(status_code=403, detail="无权查看该组织成员")
 
     # org_id 可能是 organization_members.org_id（载体机构），也可能被前端当作 company_id 传入：
     # 优先返回企业成员（命中企业时），否则回退到机构成员。
-    company_members = await tnt.company_members(org_id)
+    try:
+        company_members = await tnt.company_members(org_id)
+        log.info(f"[org_members] tnt.company_members returned {len(company_members)} members for org_id={org_id}")
+    except Exception as e:
+        log.error(f"[org_members] tnt.company_members failed for org_id={org_id}: {e}", exc_info=True)
+        company_members = []
+
     if company_members:
-        return {"items": company_members}
-    return {"items": await db.org_members.list_for_org(org_id)}
+        items = [await _normalize_org_member(m) for m in company_members]
+        log.info(f"[org_members] returning {len(items)} company members for org_id={org_id}")
+        return {"items": items}
+
+    try:
+        org_members_list = await db.org_members.list_for_org(org_id)
+        log.info(f"[org_members] db.org_members.list_for_org returned {len(org_members_list)} members for org_id={org_id}")
+    except Exception as e:
+        log.error(f"[org_members] db.org_members.list_for_org failed for org_id={org_id}: {e}", exc_info=True)
+        org_members_list = []
+
+    # 机构成员没有 avatar 字段，批量从 users 表补查
+    user_ids = [str(m.get("user_id") or "") for m in org_members_list if m.get("user_id")]
+    avatar_map = {}
+    if user_ids:
+        try:
+            users = (await db.session.execute(
+                select(User).where(User.id.in_(user_ids))
+            )).scalars().all()
+            avatar_map = {u.id: (u.avatar or "") for u in users}
+        except Exception as e:
+            log.error(f"[org_members] failed to fetch avatars: {e}", exc_info=True)
+            avatar_map = {}
+    for m in org_members_list:
+        uid = str(m.get("user_id") or "")
+        if uid and not m.get("avatar"):
+            m["avatar"] = avatar_map.get(uid, "")
+    items = [await _normalize_org_member(m) for m in org_members_list]
+    log.info(f"[org_members] returning {len(items)} org members for org_id={org_id}")
+    return {"items": items}
 
 
 @router.post("/org/{org_id}/members", summary="添加机构成员(子账号)")