diff --git a/plugins/wasm-go/extensions/ai-proxy/README.md b/plugins/wasm-go/extensions/ai-proxy/README.md
index ffc5f29bb..51952e0df 100644
--- a/plugins/wasm-go/extensions/ai-proxy/README.md
+++ b/plugins/wasm-go/extensions/ai-proxy/README.md
@@ -279,11 +279,12 @@ Google Vertex AI 所对应的 type 为 vertex。它特有的配置字段如下
 
 AWS Bedrock 所对应的 type 为 bedrock。它特有的配置字段如下：
 
-| 名称             | 数据类型   | 填写要求 | 默认值 | 描述                           |
-|----------------|--------|------|-----|------------------------------|
-| `awsAccessKey` | string | 必填   | -   | AWS Access Key，用于身份认证        |
-| `awsSecretKey` | string | 必填   | -   | AWS Secret Access Key，用于身份认证 |
-| `awsRegion`    | string | 必填   | -   | AWS 区域，例如：us-east-1          |
+| 名称                        | 数据类型   | 填写要求 | 默认值 | 描述                           |
+|---------------------------|--------|------|-----|------------------------------|
+| `awsAccessKey`            | string | 必填   | -   | AWS Access Key，用于身份认证        |
+| `awsSecretKey`            | string | 必填   | -   | AWS Secret Access Key，用于身份认证 |
+| `awsRegion`               | string | 必填   | -   | AWS 区域，例如：us-east-1          |
+| `bedrockAdditionalFields` | map    | 非必填  | -   | Bedrock 额外模型请求参数             |
 
 ## 用法示例
 
@@ -1724,6 +1725,8 @@ provider:
   awsAccessKey: "YOUR_AWS_ACCESS_KEY_ID"
   awsSecretKey: "YOUR_AWS_SECRET_ACCESS_KEY"
   awsRegion: "YOUR_AWS_REGION"
+  bedrockAdditionalFields:
+    top_k: 200
 ```
 
 **请求示例**
diff --git a/plugins/wasm-go/extensions/ai-proxy/README_EN.md b/plugins/wasm-go/extensions/ai-proxy/README_EN.md
index ed7931a81..cd1ecc7f0 100644
--- a/plugins/wasm-go/extensions/ai-proxy/README_EN.md
+++ b/plugins/wasm-go/extensions/ai-proxy/README_EN.md
@@ -224,11 +224,12 @@ For Vertex, the corresponding `type` is `vertex`. Its unique configuration field
 
 For AWS Bedrock, the corresponding `type` is `bedrock`. Its unique configuration field is:
 
-| Name           | Data Type | Requirement | Default | Description                                   |
-|----------------|-----------|-------------|---------|-----------------------------------------------|
-| `awsAccessKey` | string    | Required    | -       | AWS Access Key used for authentication        |
-| `awsSecretKey` | string    | Required    | -       | AWS Secret Access Key used for authentication |
-| `awsRegion`    | string    | Required    | -       | AWS region, e.g., us-east-1                   |
+| Name                      | Data Type | Requirement | Default | Description                                             |
+|---------------------------|-----------|-------------|---------|---------------------------------------------------------|
+| `awsAccessKey`            | string    | Required    | -       | AWS Access Key used for authentication                  |
+| `awsSecretKey`            | string    | Required    | -       | AWS Secret Access Key used for authentication           |
+| `awsRegion`               | string    | Required    | -       | AWS region, e.g., us-east-1                             |
+| `bedrockAdditionalFields` | map       | Optional    | -       | Additional inference parameters that the model supports |
 
 ## Usage Examples
 
@@ -1499,6 +1500,8 @@ provider:
   awsAccessKey: "YOUR_AWS_ACCESS_KEY_ID"
   awsSecretKey: "YOUR_AWS_SECRET_ACCESS_KEY"
   awsRegion: "YOUR_AWS_REGION"
+  bedrockAdditionalFields:
+    top_k: 200
 ```
 
 **Request Example**
diff --git a/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go b/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go
index cfc36577a..637e3b58a 100644
--- a/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go
+++ b/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go
@@ -733,11 +733,16 @@ func (b *bedrockProvider) buildBedrockTextGenerationRequest(origRequest *chatCom
 			Temperature: origRequest.Temperature,
 			TopP:        origRequest.TopP,
 		},
-		AdditionalModelRequestFields: map[string]interface{}{},
+		AdditionalModelRequestFields: make(map[string]interface{}),
 		PerformanceConfig: PerformanceConfiguration{
 			Latency: "standard",
 		},
 	}
+
+	for key, value := range b.config.bedrockAdditionalFields {
+		request.AdditionalModelRequestFields[key] = value
+	}
+
 	requestBytes, err := json.Marshal(request)
 	b.setAuthHeaders(requestBytes, headers)
 	return requestBytes, err
diff --git a/plugins/wasm-go/extensions/ai-proxy/provider/provider.go b/plugins/wasm-go/extensions/ai-proxy/provider/provider.go
index e487d679c..8f316def4 100644
--- a/plugins/wasm-go/extensions/ai-proxy/provider/provider.go
+++ b/plugins/wasm-go/extensions/ai-proxy/provider/provider.go
@@ -296,6 +296,9 @@ type ProviderConfig struct {
 	// @Title zh-CN Amazon Bedrock Region
 	// @Description zh-CN 仅适用于Amazon Bedrock服务访问
 	awsRegion string `required:"false" yaml:"awsRegion" json:"awsRegion"`
+	// @Title zh-CN Amazon Bedrock 额外模型请求参数
+	// @Description zh-CN 仅适用于Amazon Bedrock服务，用于设置模型特定的推理参数
+	bedrockAdditionalFields map[string]interface{} `required:"false" yaml:"bedrockAdditionalFields" json:"bedrockAdditionalFields"`
 	// @Title zh-CN minimax API type
 	// @Description zh-CN 仅适用于 minimax 服务。minimax API 类型，v2 和 pro 中选填一项，默认值为 v2
 	minimaxApiType string `required:"false" yaml:"minimaxApiType" json:"minimaxApiType"`
@@ -424,6 +427,12 @@ func (c *ProviderConfig) FromJson(json gjson.Result) {
 	c.awsAccessKey = json.Get("awsAccessKey").String()
 	c.awsSecretKey = json.Get("awsSecretKey").String()
 	c.awsRegion = json.Get("awsRegion").String()
+	if c.typ == providerTypeBedrock {
+		c.bedrockAdditionalFields = make(map[string]interface{})
+		for k, v := range json.Get("bedrockAdditionalFields").Map() {
+			c.bedrockAdditionalFields[k] = v.Value()
+		}
+	}
 	c.minimaxApiType = json.Get("minimaxApiType").String()
 	c.minimaxGroupId = json.Get("minimaxGroupId").String()
 	c.cloudflareAccountId = json.Get("cloudflareAccountId").String()