diff --git a/net/http/http_cache_transaction.cc b/net/http/http_cache_transaction.cc
index ce5ca68394f025f284fca3e9c4bde9d1c9cd62c4..6397c6c38292924f2b466e993c8361d22c11fa85 100644
--- a/net/http/http_cache_transaction.cc
+++ b/net/http/http_cache_transaction.cc
@@ -63,6 +63,11 @@
 #include "net/ssl/ssl_cert_request_info.h"
 #include "net/ssl/ssl_config_service.h"
 
+#if BUILDFLAG(IS_OHOS)
+#include "base/logging.h"
+#include "ohos_adapter_helper.h"
+#endif
+
 using base::Time;
 using base::TimeTicks;
 
@@ -2110,6 +2115,19 @@ int HttpCache::Transaction::DoUpdateCachedResponse() {
   response_.ssl_info = new_response_->ssl_info;
   response_.dns_aliases = new_response_->dns_aliases;
 
+#if BUILDFLAG(IS_OHOS)
+  if (new_response_->headers->response_code() == HTTP_NOT_MODIFIED) {
+    static bool res = OHOS::NWeb::OhosAdapterHelper::GetInstance()
+                          .GetSystemPropertiesInstance()
+                          .GetBoolParameter("web.304CodeCache.enable", false);
+    if (res) {
+      LOG(DEBUG) << "HttpCache::Transaction::DoUpdateCachedResponse set "
+                    "response code: HTTP_NOT_MODIFIED";
+      response_.code_cache_valid = true;
+    }
+  }
+#endif
+
   // Be careful never to set single_keyed_cache_entry_unusable back to false
   // from true.
   if (mark_single_keyed_cache_entry_unusable_) {
diff --git a/net/http/http_response_headers.h b/net/http/http_response_headers.h
index dea8bd215348dfde108a690085f14b5a6186ba6b..ba1621125ee7470c4b961325ccbc3a1055cccbb6 100644
--- a/net/http/http_response_headers.h
+++ b/net/http/http_response_headers.h
@@ -341,6 +341,10 @@ class NET_EXPORT HttpResponseHeaders
   // Write a representation of this object into tracing proto.
   void WriteIntoTrace(perfetto::TracedValue context) const;
 
+#if BUILDFLAG(IS_OHOS)
+  void SetResponseCode(int code) { response_code_ = code; }
+#endif
+
  private:
   friend class base::RefCountedThreadSafe<HttpResponseHeaders>;
 
diff --git a/net/http/http_response_info.h b/net/http/http_response_info.h
index 1455d3771b4b0fc4ab8458f195df060f59a2a982..7cd74107ed98d7bcd016ba55e0ee4d17c7186168 100644
--- a/net/http/http_response_info.h
+++ b/net/http/http_response_info.h
@@ -273,6 +273,11 @@ class NET_EXPORT HttpResponseInfo {
   absl::optional<int64_t> browser_run_id;
 
   static std::string ConnectionInfoToString(ConnectionInfo connection_info);
+
+#if BUILDFLAG(IS_OHOS)
+  // Valid when response status code is 304
+  bool code_cache_valid = false;
+#endif
 };
 
 }  // namespace net
diff --git a/net/url_request/url_request.h b/net/url_request/url_request.h
index 1a588e14ab78c6c176ed8335816a54eb1610f369..03729f9dfa597ec746d938508642116e6070a11f 100644
--- a/net/url_request/url_request.h
+++ b/net/url_request/url_request.h
@@ -880,6 +880,11 @@ class NET_EXPORT URLRequest : public base::SupportsUserData {
   std::shared_ptr<ohos_prp_preload::PRRequestInfo> preload_info() const { return preload_info_; }
 #endif
 
+#if BUILDFLAG(IS_OHOS)
+  void set_code_cache_valid(bool valid) { response_info_.code_cache_valid = valid; }
+  bool is_code_cache_valid() { return response_info_.code_cache_valid; }
+#endif
+
   static bool DefaultCanUseCookies();
 
   base::WeakPtr<URLRequest> GetWeakPtr();
diff --git a/services/network/public/mojom/url_response_head.mojom b/services/network/public/mojom/url_response_head.mojom
index f232e84621137b4deb4846628e932508d6cf0d1e..814937c3d4fd40473e874e149c09c7d5be281604 100644
--- a/services/network/public/mojom/url_response_head.mojom
+++ b/services/network/public/mojom/url_response_head.mojom
@@ -291,4 +291,7 @@ struct URLResponseHead {
   // TODO(https://crbug.com/1268378): Remove this once preflights are enforced.
   PrivateNetworkAccessPreflightResult private_network_access_preflight_result =
       PrivateNetworkAccessPreflightResult.kNone;
+
+  [EnableIf=is_ohos]
+  bool code_cache_valid = false;
 };
diff --git a/services/network/url_loader.cc b/services/network/url_loader.cc
index e553763d015cf075fe62c874e7399dd2745903ef..30d687ffb020512c0a21ce930c3280072d1f3690 100644
--- a/services/network/url_loader.cc
+++ b/services/network/url_loader.cc
@@ -1410,6 +1410,7 @@ mojom::URLResponseHeadPtr URLLoader::BuildResponseHead() const {
       PopulateParsedHeaders(response->headers.get(), url_request_->url());
 
 #if BUILDFLAG(IS_OHOS)
+  response->code_cache_valid = url_request_->is_code_cache_valid();
   std::string http_version;
   if (url_request_->was_fetched_via_spdy()) {
     http_version = "http/2.0";