diff --git a/base/BUILD.gn b/base/BUILD.gn
index 4778c4402821cc6e22f75b3606266537b8ec907e..d53a863b954887914c8b5d099ad34dca4a3ca11f 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -32,6 +32,9 @@ config("utils_config") {
   if (is_emulator == true) {
     defines += [ "EMULATOR_PLATFORM" ]
   }
+  if (current_os == "ohos") {
+    defines += [ "OHOS_PLATFORM" ]
+  }
 }
 
 config("utils_coverage_config") {
diff --git a/base/include/refbase.h b/base/include/refbase.h
index af3f6d6c8d83ea623646d59667108dee9269e832..089fc4b5c98ce889e0cb35c7dcafcee2bc1b2bcb 100644
--- a/base/include/refbase.h
+++ b/base/include/refbase.h
@@ -240,7 +240,7 @@ public:
      */
     void ExtendObjectLifetime();
 
-#ifndef EMULATOR_PLATFORM
+#ifdef OHOS_PLATFORM
     using CanPromote = std::function<bool()>;
 
     void SetCanPromote(const CanPromote& canPromote);
@@ -267,7 +267,7 @@ private:
     std::atomic<int> atomicAttempt_; // Number of attempts
     RefPtrCallback callback_ = nullptr; // Callback function to deallocate the corresponding RefBase object
     static constexpr unsigned int FLAG_EXTEND_LIFE_TIME = 0x00000002; // Extended life-time bit to be set via logic-OR
-#ifndef EMULATOR_PLATFORM
+#ifdef OHOS_PLATFORM
     CanPromote canPromote_ = nullptr;
 #endif
 #ifdef DEBUG_REFBASE
@@ -595,7 +595,7 @@ public:
      */
     void EnableTracker();
 
-#ifndef EMULATOR_PLATFORM
+#ifdef OHOS_PLATFORM
     virtual bool CanPromote();
 #endif
 
diff --git a/base/src/refbase.cpp b/base/src/refbase.cpp
index cb7426f1ceb7e278c83f066afd98041341d9e7f2..a39676c1989d7da4622cc56e95164713643584ab 100644
--- a/base/src/refbase.cpp
+++ b/base/src/refbase.cpp
@@ -211,7 +211,7 @@ bool RefCounter::IsRefPtrValid()
     return callback_ != nullptr;
 }
 
-#ifndef EMULATOR_PLATFORM
+#ifdef OHOS_PLATFORM
 void RefCounter::SetCanPromote(const CanPromote &canPromote)
 {
     canPromote_ = canPromote;
@@ -374,7 +374,7 @@ bool RefCounter::AttemptIncStrongRef(const void *objectId, int &outCount)
     }
 
     if (IsLifeTimeExtended()) {
-#ifndef EMULATOR_PLATFORM
+#ifdef OHOS_PLATFORM
         if (!IsCanPromoteValid() || !canPromote_()) {
             return false;
         }
@@ -418,7 +418,7 @@ RefBase::RefBase() : refs_(new RefCounter())
 {
     refs_->IncRefCount();
     refs_->SetCallback([this] { this->RefPtrCallback(); });
-#ifndef EMULATOR_PLATFORM
+#ifdef OHOS_PLATFORM
     refs_->SetCanPromote([this] { return this->CanPromote(); });
 #endif
 }
@@ -429,13 +429,13 @@ RefBase::RefBase(const RefBase &)
     if (refs_ != nullptr) {
         refs_->IncRefCount();
         refs_->SetCallback([this] { this->RefPtrCallback(); });
-#ifndef EMULATOR_PLATFORM
+#ifdef OHOS_PLATFORM
         refs_->SetCanPromote([this] { return this->CanPromote(); });
 #endif
     }
 }
 
-#ifndef EMULATOR_PLATFORM
+#ifdef OHOS_PLATFORM
 bool RefBase::CanPromote()
 {
     return true;
@@ -464,7 +464,7 @@ RefBase &RefBase::operator=(const RefBase &)
     if (refs_ != nullptr) {
         refs_->IncRefCount();
         refs_->SetCallback([this] { this->RefPtrCallback(); });
-#ifndef EMULATOR_PLATFORM
+#ifdef OHOS_PLATFORM
         refs_->SetCanPromote([this] { return this->CanPromote(); });
 #endif
     }