diff --git a/ets2panda/es2panda.cpp b/ets2panda/es2panda.cpp
index b2b63e0635fceb402425dc6bd9e747c1ccb65e5b..2dedf2cca1ffa6da7833635160b6d1b559ce46e1 100644
--- a/ets2panda/es2panda.cpp
+++ b/ets2panda/es2panda.cpp
@@ -20,6 +20,9 @@
 #include "util/generateBin.h"
 
 #include "es2panda.h"
+#include <cstring>
+#include <chrono>
+#include <iostream>
 
 namespace ark::es2panda {
 constexpr size_t DEFAULT_THREAD_COUNT = 2;
@@ -76,10 +79,13 @@ Compiler::Compiler(ScriptExtension ext, size_t threadCount) : Compiler(ext, thre
 Compiler::Compiler(ScriptExtension ext, size_t threadCount, std::vector<util::Plugin> &&plugins)
     : plugins_(std::move(plugins)), compiler_(new compiler::CompilerImpl(threadCount, &plugins_)), ext_(ext)
 {
+    // 启动后台内存预分配线程（非阻塞）
+    StartBackgroundMemoryPreallocation();
 }
 
 Compiler::~Compiler()
 {
+    // 后台预分配线程已经detach，会自动清理，不需要等待
     delete compiler_;
 }
 
@@ -138,6 +144,48 @@ void Compiler::DumpAsm(const pandasm::Program *prog)
     compiler::CompilerImpl::DumpAsm(prog);
 }
 
+void Compiler::StartBackgroundMemoryPreallocation()
+{
+    // 避免重复启动
+    if (preallocationStarted_.exchange(true)) {
+        return;
+    }
+
+    // 创建后台预分配线程
+    backgroundPreallocationThread_ = std::make_unique<std::thread>([]() {
+        std::cout << "[Compiler] Starting background memory preallocation..." << std::endl;
+
+        // 创建 ArenaAllocator，使用编译器空间类型
+        ThreadSafeArenaAllocator allocator(SpaceType::SPACE_TYPE_COMPILER, nullptr, true);
+
+        // 预分配 2GB 内存
+        const size_t memorySize = 2ULL * 1024 * 1024 * 1024;  // 2GB
+        void* memory = allocator.Alloc(memorySize);
+
+        if (memory != nullptr) {
+            // 访问内存以确保页面被映射
+            std::memset(memory, 0, memorySize);
+
+            // 等待一段时间让页面稳定
+           //std::this_thread::sleep_for(std::chrono::milliseconds(100));
+
+            // 释放内存
+            allocator.Resize(0);
+
+            std::cout << "[Compiler] Background memory preallocation completed successfully" << std::endl;
+        } else {
+            std::cout << "[Compiler] Background memory preallocation failed" << std::endl;
+        }
+
+        std::cout << "[Compiler] Background memory preallocation thread finished" << std::endl;
+    });
+
+    // 将线程设置为分离状态，这样主线程不需要等待
+    backgroundPreallocationThread_->detach();
+
+    std::cout << "[Compiler] Background memory preallocation thread started (non-blocking)" << std::endl;
+}
+
 // When compiling multi thread, this is need by each thread indenpengdentlt
 thread_local util::DiagnosticEngine *g_diagnosticEngine = nullptr;
 }  // namespace ark::es2panda
diff --git a/ets2panda/es2panda.h b/ets2panda/es2panda.h
index 1f5a0aafc4ab0388f7a7066add558876f47c1c25..fd47c4b1078356daeca2915a48169a41fb4a58dd 100644
--- a/ets2panda/es2panda.h
+++ b/ets2panda/es2panda.h
@@ -21,6 +21,9 @@
 #include "util/diagnostic.h"
 #include "generated/options.h"
 #include "util/language.h"
+#include <thread>
+#include <atomic>
+#include <memory>
 
 namespace ark::es2panda::ir {
 class AstNode;
@@ -133,10 +136,19 @@ public:
     }
 
 private:
+    /**
+     * @brief 启动后台内存预分配线程（非阻塞）
+     */
+    void StartBackgroundMemoryPreallocation();
+
     std::vector<util::Plugin> const plugins_ {};
     compiler::CompilerImpl *compiler_ {};
     util::ThrowableDiagnostic error_ {};
     ScriptExtension ext_ {};
+
+    // 后台内存预分配相关成员
+    std::unique_ptr<std::thread> backgroundPreallocationThread_;
+    std::atomic<bool> preallocationStarted_{false};
 };
 
 // g_diagnosticEngine used only for flush diagnostic before unexpected process termination: