diff --git a/AIEngineModule/example/test_example.cpp b/AIEngineModule/example/test_example.cpp
index 0346522..a8f71eb 100644
--- a/AIEngineModule/example/test_example.cpp
+++ b/AIEngineModule/example/test_example.cpp
@@ -103,6 +103,8 @@ int main(int argc, char *argv[])
 	GPU_Config gpu;
 	gpu.gpu_0 = true;
 	gpu.gpu_1 = true;
+	gpu.gpu_2 = true;
+	gpu.gpu_3 = true;
 
 	AI_Factory->InitALLAIModle(gpu);
 	std::shared_ptr<AIModel_Base> BOE_Edge_Detect = AI_Factory->BOE_Edge_Detect;
diff --git a/AIEngineModule/include_base/AI_Factory.h b/AIEngineModule/include_base/AI_Factory.h
index 2fab0e2..4b00fd0 100644
--- a/AIEngineModule/include_base/AI_Factory.h
+++ b/AIEngineModule/include_base/AI_Factory.h
@@ -31,10 +31,14 @@ struct GPU_Config
 {
     bool gpu_0;
     bool gpu_1;
+    bool gpu_2;
+    bool gpu_3;
     GPU_Config()
     {
         gpu_0 = true;
         gpu_1 = true;
+        gpu_2 = true;
+        gpu_3 = true;
     }
     int GetNum()
     {
@@ -47,12 +51,22 @@ struct GPU_Config
         {
             num++;
         }
+        if (gpu_2)
+        {
+            num++;
+        }
+        if (gpu_3)
+        {
+            num++;
+        }
         return num;
     }
     void copy(GPU_Config tem)
     {
         this->gpu_0 = tem.gpu_0;
         this->gpu_1 = tem.gpu_1;
+        this->gpu_2 = tem.gpu_2;
+        this->gpu_3 = tem.gpu_3;
     }
 };
 
diff --git a/AIEngineModule/src/AIModel_Impl.cpp b/AIEngineModule/src/AIModel_Impl.cpp
index edd402c..d6e392d 100644
--- a/AIEngineModule/src/AIModel_Impl.cpp
+++ b/AIEngineModule/src/AIModel_Impl.cpp
@@ -48,22 +48,22 @@ int AIModel_Impl::Init(AIModelRun_Config config)
     if (m_modelRun_Config.gpuconfig.gpu_0)
     {
         re = LoadEngine(0);
-        // 加载失败
-        if (re != 0)
-        {
-        }
     }
     if (m_modelRun_Config.gpuconfig.gpu_1)
     {
         re = LoadEngine(1);
-        // 加载失败
-        if (re != 0)
-        {
-        }
+    }
+    if (m_modelRun_Config.gpuconfig.gpu_2)
+    {
+        re = LoadEngine(2);
+    }
+    if (m_modelRun_Config.gpuconfig.gpu_3)
+    {
+        re = LoadEngine(3);
     }
     int nGPUNum = m_GPU_Engine.size();
     // 模型载入失败
-    if (nGPUNum <= 0 || nGPUNum > 2)
+    if (nGPUNum <= 0 || nGPUNum > 4)
     {
         printf(" %s model Init error \n", m_modelRun_Config.strName.c_str());
         return 2;
@@ -113,10 +113,14 @@ int AIModel_Impl::Init(AIModelRun_Config config)
     // 生产推理用的 参数信息
     if (m_GPU_Engine.size() > 1)
     {
-        if (m_GPU_Engine.at(0)->cudaSteams.size() != m_GPU_Engine.at(1)->cudaSteams.size())
+        size_t firstStreamNum = m_GPU_Engine.at(0)->cudaSteams.size();
+        for (size_t i = 1; i < m_GPU_Engine.size(); i++)
         {
-            printf(" %s model Init error \n", m_modelRun_Config.strName.c_str());
-            return 3;
+            if (m_GPU_Engine.at(i)->cudaSteams.size() != firstStreamNum)
+            {
+                printf(" %s model Init error \n", m_modelRun_Config.strName.c_str());
+                return 3;
+            }
         }
     }
     if (streamNum <= 0)
diff --git a/AlgorithmModule/src/ALLImgCheckAnalysisy.cpp b/AlgorithmModule/src/ALLImgCheckAnalysisy.cpp
index 3ed5e0b..f973d06 100644
--- a/AlgorithmModule/src/ALLImgCheckAnalysisy.cpp
+++ b/AlgorithmModule/src/ALLImgCheckAnalysisy.cpp
@@ -302,6 +302,8 @@ int ALLImgCheckAnalysisy::InitAIFactory()
 	GPU_Config gpu;
 	gpu.gpu_0 = true;
 	gpu.gpu_1 = true;
+	gpu.gpu_2 = true;
+	gpu.gpu_3 = true;
 
 	AI_Factory->InitALLAIModle(gpu);
 	return 0;
diff --git a/example/SystemCommonDefine.h b/example/SystemCommonDefine.h
index 773cce8..a1e3ee0 100644
--- a/example/SystemCommonDefine.h
+++ b/example/SystemCommonDefine.h
@@ -60,7 +60,7 @@ enum CHECKIMGTRUNTYP_
 // url长度
 #define MAX_ULR_LEN 256
 
-#define MAX_GPU_NUM 2
+#define MAX_GPU_NUM 4
 
 // ncnn 行人检测 跟踪   检测最大 线程个数
 #define MAX_PERSONTRACKER_THREAD_NUM 4