diff --git a/docs/LightRAG_concurrent_explain.md b/docs/LightRAG_concurrent_explain.md
index de3ef881..5f55b0a9 100644
--- a/docs/LightRAG_concurrent_explain.md
+++ b/docs/LightRAG_concurrent_explain.md
@@ -239,11 +239,6 @@ Total:
 - 4 chunks waiting for LLM response
 ```
 
-### Scenario 3: Resource Bottleneck Analysis
-
-**Timeline Example (max_parallel_insert=2, llm_model_max_async=4)**:
-![lightrag_llm_request_timeline.png](assets%2Flightrag_llm_request_timeline.png)
-
 ## 7. Performance Optimization Recommendations
 
 ### Understanding the Bottleneck
diff --git a/docs/assets/lightrag_llm_request_timeline.png b/docs/assets/lightrag_llm_request_timeline.png
deleted file mode 100644
index a494328b..00000000
Binary files a/docs/assets/lightrag_llm_request_timeline.png and /dev/null differ
diff --git a/docs/zh/LightRAG_concurrent_explain_zh.md b/docs/zh/LightRAG_concurrent_explain_zh.md
index 2cd2eace..d49a629c 100644
--- a/docs/zh/LightRAG_concurrent_explain_zh.md
+++ b/docs/zh/LightRAG_concurrent_explain_zh.md
@@ -235,9 +235,6 @@ async def _process_single_content(chunk_key_dp: tuple[str, TextChunkSchema]):
 - 4个chunks等待LLM响应
 ```
 
-### 场景3：资源瓶颈分析
-![lightrag_llm_request_timeline.png](..%2Fassets%2Flightrag_llm_request_timeline.png)
-
 ## 7. 性能优化建议
 
 ### 理解瓶颈