diff --git a/AliyunOSSSDK/OSSClient.m b/AliyunOSSSDK/OSSClient.m
index 1bfeab3e..d60b1159 100644
--- a/AliyunOSSSDK/OSSClient.m
+++ b/AliyunOSSSDK/OSSClient.m
@@ -1758,9 +1758,8 @@ - (OSSTask *)sequentialUpload:(OSSMultipartUploadRequest *)request
             realPartLength = uploadFileSize - request.partSize * (i - 1);
 #pragma clang diagnostic pop
         }
-        NSData *uploadPartData = [fileHande readDataOfLength:realPartLength];
-        
         @autoreleasepool {
+            NSData *uploadPartData = [fileHande readDataOfLength:realPartLength];
             OSSUploadPartRequest * uploadPart = [OSSUploadPartRequest new];
             uploadPart.bucketName = request.bucketName;
             uploadPart.objectkey = request.objectKey;
diff --git a/AliyunOSSSDK/OSSModel.h b/AliyunOSSSDK/OSSModel.h
index a6309581..a8ba5da6 100644
--- a/AliyunOSSSDK/OSSModel.h
+++ b/AliyunOSSSDK/OSSModel.h
@@ -209,6 +209,10 @@ Sets the session Id for background file transmission
  是否开启crc校验(当同时设置了此选项和请求中的checkCRC开关时，以请求中的checkCRC开关为准)
  */
 @property (nonatomic, assign) BOOL crc64Verifiable;
+/*
+ ip访问需要添加参数ipWithHeader
+ */
+@property (nonatomic, copy) NSString * ipWithHeader;
 
 @end
 
diff --git a/AliyunOSSSDK/OSSModel.m b/AliyunOSSSDK/OSSModel.m
index ca09c0d9..8c415dfe 100644
--- a/AliyunOSSSDK/OSSModel.m
+++ b/AliyunOSSSDK/OSSModel.m
@@ -461,9 +461,25 @@ - (instancetype)initWithClientConfiguration:(OSSClientConfiguration *)clientConf
 - (OSSTask *)interceptRequestMessage:(OSSAllRequestNeededMessage *)request {
     NSString * userAgent = [self getUserAgent:self.clientConfiguration.userAgentMark];
     [request.headerParams oss_setObject:userAgent forKey:@"User-Agent"];
+    if ([self isIPAddress:request.endpoint]) {
+           [request.headerParams oss_setObject:self.clientConfiguration.ipWithHeader forKey:@"host"];
+    }
     return [OSSTask taskWithResult:nil];
 }
-
+/**
+ * 判断字符串是否为IP地址
+ * param iPAddress IP地址字符串
+ * return BOOL 是返回YES，否返回NO
+ */
+- (BOOL)isIPAddress:(NSString *)iPAddress{
+    NSString *pattern = @"^(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5]).(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5]).(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5]).(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5])$";
+    
+    return [self isText:[iPAddress componentsSeparatedByString:@"//"][1] pattern:pattern];
+}
+- (BOOL)isText:(NSString *)text pattern:(NSString *)pattern{
+    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",pattern];
+    return [predicate evaluateWithObject:text];
+}
 
 - (NSString *)getUserAgent:(NSString *)customUserAgent {
     static NSString * userAgent = nil;
diff --git a/AliyunOSSSDK/OSSNetworkingRequestDelegate.m b/AliyunOSSSDK/OSSNetworkingRequestDelegate.m
index 4bc33079..5a19f09a 100644
--- a/AliyunOSSSDK/OSSNetworkingRequestDelegate.m
+++ b/AliyunOSSSDK/OSSNetworkingRequestDelegate.m
@@ -94,7 +94,7 @@ - (OSSTask *)buildInternalHttpRequest {
                    temComs.host = dnsResult;
                }
            } else if ([ipAdapter isIPv4Address:temComs.host] || [ipAdapter isIPv6Address:temComs.host]) {
-               temComs.path = [NSString stringWithFormat:@"/%@",self.allNeededMessage.bucketName];
+//               temComs.path = [NSString stringWithFormat:@"/%@",self.allNeededMessage.bucketName];
            }
        }