diff --git a/admin.py b/admin.py
index 75aeb38..d3cb1d7 100644
--- a/admin.py
+++ b/admin.py
@@ -52,6 +52,7 @@ DEFAULT_CONFIG = {
     ], ensure_ascii=False),
     "footer_text": "NBA球迷大全 · 数据为模拟演示数据（2025-26 赛季） · LLM: DeepSeek · 向量: Chroma + bge-large-zh",
     "admin_password": "admin123",
+    "entity_mark_mode": "first",   # 实体标记：first=只标记首次出现 / all=全部标记
 }
 
 SEARCHABLE = {  # 每个表可搜索的 TEXT 字段
diff --git a/api.py b/api.py
index 6ab8523..03d93f8 100644
--- a/api.py
+++ b/api.py
@@ -78,7 +78,8 @@ def api_chat():
         game_refs = [it for s in sources
                      if s.get("tool") in ("search_games", "get_game_detail")
                      for it in s.get("items", [])]
-        spans, cards = entity_linker.link_entities(reply, game_refs=game_refs)
+        mark_mode = admin_mod.get_config().get("entity_mark_mode", "first")
+        spans, cards = entity_linker.link_entities(reply, game_refs=game_refs, mark_mode=mark_mode)
         return jsonify({"reply": reply, "sources": sources, "used_tools": used_tools,
                         "news_refs": news_refs, "entities": spans, "cards": cards})
     except Exception as e:
diff --git a/entity_linker.py b/entity_linker.py
index 80d5208..bbb987f 100644
--- a/entity_linker.py
+++ b/entity_linker.py
@@ -164,13 +164,23 @@ def _match_games(text, game_refs):
     return cards
 
 
-def link_entities(text, game_refs=None):
+def link_entities(text, game_refs=None, mark_mode="first"):
     """主入口：扫描回答文本。
     返回 (spans, cards)
       spans: 实体命中区间（前端高亮标记用），按 start 升序、互不重叠
+             mark_mode="first" 时同一实体(type,id)只保留首次出现；"all" 时全部标记
       cards: 快速查看卡片数据（每类限量，避免刷屏）
     """
     spans = _find_spans(text or "")
+    if mark_mode == "first":
+        seen, kept = set(), []
+        for sp in spans:          # spans 已按 start 升序 → 保留首次
+            key = (sp["type"], sp["id"])
+            if key in seen:
+                continue
+            seen.add(key)
+            kept.append(sp)
+        spans = kept
     cards = []
     seen_cards = set()
     for sp in spans:
diff --git a/static/admin.html b/static/admin.html
index 4bb6b51..1fc47af 100644
--- a/static/admin.html
+++ b/static/admin.html
@@ -159,6 +159,11 @@ td.num { text-align:center; }
         </div>
         <div class="row2">
           <div><label>管理员密码（留空则不修改）</label><input type="password" id="cfg-admin_password" placeholder="••••••"></div>
+          <div><label>实体标记模式</label><select id="cfg-entity_mark_mode">
+            <option value="first">只标记首次出现（推荐）</option>
+            <option value="all">全部标记</option>
+          </select>
+          <div class="tip">对话回答中球队/球员/人物等特殊标记策略</div></div>
         </div>
         <div class="form-actions">
           <button class="btn" id="cfg-save">💾 保存配置</button>
diff --git a/static/admin.js b/static/admin.js
index 69c5602..106d1f3 100644
--- a/static/admin.js
+++ b/static/admin.js
@@ -207,6 +207,7 @@ async function loadConfig() {
   $("#cfg-welcome_hint").value = d.welcome_hint || "";
   $("#cfg-footer_text").value = d.footer_text || "";
   $("#cfg-admin_password").value = "";
+  $("#cfg-entity_mark_mode").value = d.entity_mark_mode === "all" ? "all" : "first";
   try { $("#cfg-suggestions").value = JSON.parse(d.suggestions || "[]").join("\n"); }
   catch (e) { $("#cfg-suggestions").value = ""; }
   $("#cfg-msg").textContent = "";
@@ -222,6 +223,7 @@ $("#cfg-save").addEventListener("click", async () => {
   };
   const pw = $("#cfg-admin_password").value;
   if (pw) payload.admin_password = pw;
+  payload.entity_mark_mode = $("#cfg-entity_mark_mode").value;
   try {
     await api("/api/admin/config", { method: "PUT", body: JSON.stringify(payload) });
     $("#cfg-msg").textContent = "✅ 保存成功，前台刷新后生效";
diff --git a/static/index.html b/static/index.html
index 6c0822c..5de3b98 100644
--- a/static/index.html
+++ b/static/index.html
@@ -25,7 +25,6 @@
     <button class="tab" data-view="persons">👥 人物</button>
     <button class="tab" data-view="standings">🏆 排名</button>
   </nav>
-  <a class="admin-link" href="/admin" title="管理后台">⚙️</a>
 </header>
 
 <main>