diff --git a/NEWS.md b/NEWS.md
index c0555e60..18811638 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -88,6 +88,8 @@ Red Panda C++ Version 2.27
   - change: Set focus to "find" button when "find in files..." dialog is openned.
   - enhancement: Correct tab orders for all setting pages/dialogs.
   - enhancement: Shortcut key for buttons in find/replace and "find in files" dialogs.  
+  
+  - enhancement: Auto define macro "_DEBUG" for "Debug" compiler set(like visual studio).
     
 Red Panda C++ Version 2.26
   - enhancement: Code suggestion for embedded std::vectors.
diff --git a/RedPandaIDE/compiler/filecompiler.cpp b/RedPandaIDE/compiler/filecompiler.cpp
index 0847af81..bf9afd65 100644
--- a/RedPandaIDE/compiler/filecompiler.cpp
+++ b/RedPandaIDE/compiler/filecompiler.cpp
@@ -138,7 +138,9 @@ bool FileCompiler::prepareForCompile()
     default:
         throw CompileError(tr("Can't find the compiler for file %1").arg(mFilename));
     }
-
+    if (mArguments.contains("-g3")) {
+        mArguments << "-D_DEBUG";
+    }
     if (!mOnlyCheckSyntax)
         mArguments += getLibraryArguments(fileType);
 
diff --git a/RedPandaIDE/compiler/projectcompiler.cpp b/RedPandaIDE/compiler/projectcompiler.cpp
index 88c17bca..f4891244 100644
--- a/RedPandaIDE/compiler/projectcompiler.cpp
+++ b/RedPandaIDE/compiler/projectcompiler.cpp
@@ -226,8 +226,10 @@ void ProjectCompiler::writeMakeDefines(QFile &file)
     QStringList cCompileArguments = getCCompileArguments(false);
     QStringList cxxCompileArguments = getCppCompileArguments(false);
     if (cCompileArguments.contains("-g3")) {
-        cCompileArguments << "-D__DEBUG__";
-        cxxCompileArguments << "-D__DEBUG__";
+        cCompileArguments << "-D_DEBUG";
+    }
+    if (cxxCompileArguments.contains("-g3")) {
+        cxxCompileArguments << "-D_DEBUG";
     }
     QStringList libraryArguments = getLibraryArguments(FileType::Project);
     QStringList cIncludeArguments = getCIncludeArguments();
diff --git a/RedPandaIDE/compiler/sdccprojectcompiler.cpp b/RedPandaIDE/compiler/sdccprojectcompiler.cpp
index 52cc6b53..d18934a0 100644
--- a/RedPandaIDE/compiler/sdccprojectcompiler.cpp
+++ b/RedPandaIDE/compiler/sdccprojectcompiler.cpp
@@ -143,7 +143,8 @@ void SDCCProjectCompiler::writeMakeDefines(QFile &file)
 
     QStringList cCompileArguments = getCCompileArguments(mOnlyCheckSyntax);
     if (cCompileArguments.contains("-g3"))
-        cCompileArguments << "-D__DEBUG__";
+        cCompileArguments << "-D_DEBUG";
+
     QStringList libraryArguments = getLibraryArguments(FileType::Project);
     QStringList cIncludeArguments = getCIncludeArguments() + getProjectIncludeArguments();
 
diff --git a/RedPandaIDE/settings.cpp b/RedPandaIDE/settings.cpp
index 429324d9..0a03c8d1 100644
--- a/RedPandaIDE/settings.cpp
+++ b/RedPandaIDE/settings.cpp
@@ -2510,6 +2510,10 @@ QStringList Settings::CompilerSet::defines(bool isCpp) {
             if (!mCompileOptions[key].isEmpty())
                 arguments.append(pOption->setting + mCompileOptions[key]);
         }
+        pOption = CompilerInfoManager::getCompilerOption(compilerType(), CC_CMD_OPT_DEBUG_INFO);
+        if (pOption && mCompileOptions.contains(CC_CMD_OPT_DEBUG_INFO)) {
+            arguments.append(pOption->setting);
+        }
 #ifdef ENABLE_SDCC
     }
 #endif
@@ -2518,8 +2522,12 @@ QStringList Settings::CompilerSet::defines(bool isCpp) {
         QStringList extraParams = parseArgumentsWithoutVariables(mCustomCompileParams);
         arguments.append(extraParams);
     }
+    if (arguments.contains("-g3"))
+        arguments.append("-D_DEBUG");
     arguments.append(NULL_FILE);
 
+    qDebug()<<arguments;
+
     QFileInfo ccompiler(mCCompiler);
     QByteArray output = getCompilerOutput(ccompiler.absolutePath(),ccompiler.fileName(),arguments);
     // 'cpp.exe -dM -E -x c++ -std=c++17 NUL'