diff --git a/metagpt/provider/bedrock/bedrock_provider.py b/metagpt/provider/bedrock/bedrock_provider.py
index 729697ad7..850b57c4f 100644
--- a/metagpt/provider/bedrock/bedrock_provider.py
+++ b/metagpt/provider/bedrock/bedrock_provider.py
@@ -1,7 +1,7 @@
 import json
 from typing import Literal
 from metagpt.provider.bedrock.base_provider import BaseBedrockProvider
-from metagpt.provider.bedrock.utils import messages_to_prompt_llama2, messages_to_prompt_llama3
+from metagpt.provider.bedrock.utils import messages_to_prompt_llama2, messages_to_prompt_llama3, messages_to_prompt_claude
 
 
 class MistralProvider(BaseBedrockProvider):
@@ -16,6 +16,8 @@ class MistralProvider(BaseBedrockProvider):
 
 class AnthropicProvider(BaseBedrockProvider):
     # See https://docs.aws.amazon.com/bedrock/latest/userguide/model-parameters-anthropic-claude-messages.html
+    def messages_to_prompt(self, messages: list[dict]) -> str:
+        return messages_to_prompt_claude(messages)
 
     def get_request_body(self, messages: list[dict], **generate_kwargs):
         body = json.dumps(
diff --git a/metagpt/provider/bedrock/utils.py b/metagpt/provider/bedrock/utils.py
index 61778e8e8..47a23caeb 100644
--- a/metagpt/provider/bedrock/utils.py
+++ b/metagpt/provider/bedrock/utils.py
@@ -70,5 +70,18 @@ def messages_to_prompt_llama3(messages: list[dict]):
     return prompt
 
 
+def messages_to_prompt_claude(messages: list[dict]):
+    GENERAL_TEMPLATE = "\n\n{role}: {content}"
+    prompt = ""
+    for message in messages:
+        role = message["role"]
+        content = message["content"]
+        prompt += GENERAL_TEMPLATE.format(role=role, content=content)
+    if role != "assistant":
+        prompt += f"\n\nAssistant:"
+    return prompt
+
+
 def get_max_tokens(model_id) -> int:
     return (NOT_SUUPORT_STREAM_MODELS | SUPPORT_STREAM_MODELS)[model_id]
+