diff --git a/YTKNetwork/YTKNetworkAgent.m b/YTKNetwork/YTKNetworkAgent.m
index 4fca670..40a0a7b 100644
--- a/YTKNetwork/YTKNetworkAgent.m
+++ b/YTKNetwork/YTKNetworkAgent.m
@@ -48,6 +48,7 @@ - (id)init {
         _manager = [AFHTTPRequestOperationManager manager];
         _requestsRecord = [NSMutableDictionary dictionary];
         _manager.operationQueue.maxConcurrentOperationCount = 4;
+        _manager.securityPolicy = _config.securityPolicy;
     }
     return self;
 }
diff --git a/YTKNetwork/YTKNetworkConfig.h b/YTKNetwork/YTKNetworkConfig.h
index 14d6d65..b17bc31 100644
--- a/YTKNetwork/YTKNetworkConfig.h
+++ b/YTKNetwork/YTKNetworkConfig.h
@@ -40,6 +40,7 @@
 @property (strong, nonatomic) NSString *cdnUrl;
 @property (strong, nonatomic, readonly) NSArray *urlFilters;
 @property (strong, nonatomic, readonly) NSArray *cacheDirPathFilters;
+@property (strong, nonatomic) AFSecurityPolicy *securityPolicy;
 
 - (void)addUrlFilter:(id<YTKUrlFilterProtocol>)filter;
 - (void)addCacheDirPathFilter:(id <YTKCacheDirPathFilterProtocol>)filter;
diff --git a/YTKNetwork/YTKNetworkConfig.m b/YTKNetwork/YTKNetworkConfig.m
index 5e573ca..0473948 100644
--- a/YTKNetwork/YTKNetworkConfig.m
+++ b/YTKNetwork/YTKNetworkConfig.m
@@ -42,6 +42,7 @@ - (id)init {
     if (self) {
         _urlFilters = [NSMutableArray array];
         _cacheDirPathFilters = [NSMutableArray array];
+        _securityPolicy = [AFSecurityPolicy defaultPolicy];
     }
     return self;
 }