diff --git a/AlgorithmModule/include/Define_Base.h b/AlgorithmModule/include/Define_Base.h
index 4531050..0aa55e8 100644
--- a/AlgorithmModule/include/Define_Base.h
+++ b/AlgorithmModule/include/Define_Base.h
@@ -13,7 +13,12 @@
 // 检测分析线程类数目
 #define IMGCHECKANALYSISY_NUM 2
 
-
+// 检测线程绑定的 CPU 核带（核带下沉到库内部，调用方传入的 nCpu_start_Idx / nCpu_num 不再生效）
+// 分配规则：第 k 个检测线程绑定 核 = CHECK_CPU_BAND_START + (k % CHECK_CPU_BAND_NUM)
+// 当前 4 个检测线程落在 15,16,17,18（逻辑核 c 与 c+16 为超线程兄弟，故物理核为 15,0,1,2）
+// 注意：CHECK_CPU_BAND_NUM 必须 >= 相机数 * IMGCHECKANALYSISY_NUM，否则取模回绕会导致两个检测线程绑同一核
+#define CHECK_CPU_BAND_START 15
+#define CHECK_CPU_BAND_NUM 8
 
 //  相机ID 的相关定义
 enum Camera_IDX
diff --git a/AlgorithmModule/src/CameraCheckAnalysisy.cpp b/AlgorithmModule/src/CameraCheckAnalysisy.cpp
index 131cebd..2e6a7e6 100644
--- a/AlgorithmModule/src/CameraCheckAnalysisy.cpp
+++ b/AlgorithmModule/src/CameraCheckAnalysisy.cpp
@@ -683,9 +683,9 @@ int CameraCheckAnalysisy::InitCheckAnalysisy()
 		RunInfoST RunConfig;
 		RunConfig.nThreadIdx = i;
 		{
-			int range = (m_RunConfig.nCpu_num > 0) ? m_RunConfig.nCpu_num : 1;
-			int offset = s_cpuOffset.fetch_add(1) % range;
-			RunConfig.nCpu_start_Idx = m_RunConfig.nCpu_start_Idx + offset;
+			// 核带下沉到库内部：不再依赖调用方传入的 nCpu_start_Idx / nCpu_num
+			int offset = s_cpuOffset.fetch_add(1) % CHECK_CPU_BAND_NUM;
+			RunConfig.nCpu_start_Idx = CHECK_CPU_BAND_START + offset;
 		}
 		RunConfig.nCpu_num = 1;
 
diff --git a/example/deal.cpp b/example/deal.cpp
index abaabc5..7ba1ee9 100644
--- a/example/deal.cpp
+++ b/example/deal.cpp
@@ -1497,6 +1497,8 @@ int deal::InitCPUIDX()
     start += READ_IMG_THREAD_NUM;
     m_CPUInfo[THREAD_CPU_Main_saveImg].set(start, Save_IMG_THREAD_NUM);
     start += Save_IMG_THREAD_NUM;
+    // 注意：检测线程的核带已下沉到库内部（AlgorithmModule/include/Define_Base.h 的
+    // CHECK_CPU_BAND_START / CHECK_CPU_BAND_NUM），下面这项仅为兼容赋值，不再影响检测线程绑核。
     m_CPUInfo[THREAD_CPU_CheckSo].set(start, 15);
     return 0;
 }