diff --git a/docs/features/sampling.md b/docs/features/sampling.md
index 01edb5dd8..3a0d22869 100644
--- a/docs/features/sampling.md
+++ b/docs/features/sampling.md
@@ -98,7 +98,7 @@ curl -X POST "http://0.0.0.0:9222/v1/chat/completions" \
     {"role": "user", "content": "How old are you"}
   ],
   "top_p": 0.8,
-  "top_k": 50
+  "top_k": 20
 }'
 ```
 
@@ -117,7 +117,7 @@ response = client.chat.completions.create(
     ],
     stream=True,
     top_p=0.8,
-    top_k=50
+    extra_body={"top_k": 20, "min_p":0.1}
 )
 for chunk in response:
     if chunk.choices[0].delta:
@@ -159,8 +159,7 @@ response = client.chat.completions.create(
     ],
     stream=True,
     top_p=0.8,
-    top_k=20,
-    min_p=0.1
+    extra_body={"top_k": 20, "min_p":0.1}
 )
 for chunk in response:
     if chunk.choices[0].delta:
diff --git a/docs/offline_inference.md b/docs/offline_inference.md
index 2da2286b8..31f79b749 100644
--- a/docs/offline_inference.md
+++ b/docs/offline_inference.md
@@ -183,6 +183,7 @@ For ```LLM``` configuration, refer to [Parameter Documentation](parameters.md).
 * min_p(float): Minimum probability relative to the maximum probability for a token to be considered (>0 filters low-probability tokens to improve quality)
 * max_tokens(int): Maximum generated tokens (input + output)
 * min_tokens(int): Minimum forced generation length
+* bad_words(list[str]): Prohibited words
 
 ### 2.5 fastdeploy.engine.request.RequestOutput
 
diff --git a/docs/online_serving/README.md b/docs/online_serving/README.md
index 761e79720..5cb5bf188 100644
--- a/docs/online_serving/README.md
+++ b/docs/online_serving/README.md
@@ -137,6 +137,9 @@ When sending requests using openai.Client, these parameters need to be placed in
 
 The following sampling parameters are supported.
 ```python
+bad_words: Optional[List[int]] = None
+# List of forbidden words that the model should avoid generating (default None means no restriction).
+
 top_k: Optional[int] = None
 # Limits the consideration to the top K tokens with the highest probability at each generation step, used to control randomness (default None means no limit).
 
diff --git a/docs/zh/features/sampling.md b/docs/zh/features/sampling.md
index 829006d31..24cc003b5 100644
--- a/docs/zh/features/sampling.md
+++ b/docs/zh/features/sampling.md
@@ -98,7 +98,7 @@ curl -X POST "http://0.0.0.0:9222/v1/chat/completions" \
     {"role": "user", "content": "How old are you"}
   ],
   "top_p": 0.8,
-  "top_k": 50
+  "top_k": 20
 }'
 ```
 
@@ -118,7 +118,7 @@ response = client.chat.completions.create(
     ],
     stream=True,
     top_p=0.8,
-    extra_body={"top_k": 50}
+    extra_body={"top_k": 20}
 )
 for chunk in response:
     if chunk.choices[0].delta:
@@ -161,8 +161,7 @@ response = client.chat.completions.create(
     ],
     stream=True,
     top_p=0.8,
-    extra_body={"top_k": 20},
-    min_p=0.1
+    extra_body={"top_k": 20, "min_p": 0.1}
 )
 for chunk in response:
     if chunk.choices[0].delta:
diff --git a/docs/zh/offline_inference.md b/docs/zh/offline_inference.md
index 855116484..a77311495 100644
--- a/docs/zh/offline_inference.md
+++ b/docs/zh/offline_inference.md
@@ -183,6 +183,7 @@ for output in outputs:
 * min_p(float): token入选的最小概率阈值(相对于最高概率token的比值，设为>0可通过过滤低概率token来提升文本生成质量)
 * max_tokens(int): 限制模型生成的最大token数量（包括输入和输出）
 * min_tokens(int): 强制模型生成的最少token数量，避免过早结束
+* bad_words(list[str]): 禁止生成的词列表, 防止模型生成不希望出现的词
 
 ### 2.5 fastdeploy.engine.request.RequestOutput
 
diff --git a/docs/zh/online_serving/README.md b/docs/zh/online_serving/README.md
index a68eedbdb..d056418d5 100644
--- a/docs/zh/online_serving/README.md
+++ b/docs/zh/online_serving/README.md
@@ -137,6 +137,9 @@ metadata: Optional[dict] = None
 
 额外采样参数的支持如下：
 ```python
+bad_words: Optional[List[str]] = None
+# 禁止生成的词汇列表，模型会避免输出这些词（默认 None 表示不限制）。
+
 top_k: Optional[int] = None
 # 限制每一步生成时只考虑概率最高的 K 个 token，用于控制随机性（默认 None 表示不限制）。