diff --git a/NEWS.md b/NEWS.md
index 7e9f0d66..a1eec31b 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -4,6 +4,7 @@ Red Panda C++ Version 1.4
   - fix: crash when create non C/C++ source file in project
   - fix: can't open text project file in the editor
   - change: when create non-text project file, don't auto open it
+  - fix: the project compiler options is not correctly read  when open old dev-c++ project 
 
 Red Panda C++ Version 1.3
 
diff --git a/RedPandaIDE/project.cpp b/RedPandaIDE/project.cpp
index 1377f68b..56225a91 100644
--- a/RedPandaIDE/project.cpp
+++ b/RedPandaIDE/project.cpp
@@ -1769,6 +1769,28 @@ void Project::loadOptions(SimpleIni& ini)
             QByteArray oldCompilerOptions = ini.GetValue("Project", "CompilerSettings", "");
             if (!oldCompilerOptions.isEmpty()) {
                 //version 2 compatibility
+                // test if it is created by old dev-c++
+                SimpleIni::TNamesDepend oKeys;
+                ini.GetAllKeys("Project", oKeys);
+                bool isNewDev=false;
+                for(const SimpleIni::Entry& entry:oKeys) {
+                    QString key(entry.pItem);
+                    if (key=="UsePrecompiledHeader"
+                            || key == "CompilerSetType"
+                            || key == "StaticLink"
+                            || key == "AddCharset"
+                            || key == "ExecEncoding"
+                            || key == "Encoding"
+                            || key == "UseUTF8") {
+                        isNewDev = true;
+                        break;
+                    }
+                }
+                if (!isNewDev && oldCompilerOptions.length()>=25) {
+                    char t = oldCompilerOptions[18];
+                    oldCompilerOptions[18]=oldCompilerOptions[21];
+                    oldCompilerOptions[21]=t;
+                }
                 for (int i=0;i<oldCompilerOptions.length();i++) {
                     QString key = pSettings->compilerSets().getKeyFromCompilerCompatibleIndex(i);
                     PCompilerOption pOption = CompilerInfoManager::getCompilerOption(
diff --git a/RedPandaIDE/settings.cpp b/RedPandaIDE/settings.cpp
index dc4c34bb..87890a9f 100644
--- a/RedPandaIDE/settings.cpp
+++ b/RedPandaIDE/settings.cpp
@@ -2893,7 +2893,7 @@ void Settings::CompilerSets::prepareCompatibleIndex()
 
     //old settings compatibility, don't reorder, add or remove items
     mCompilerCompatibleIndex.append(CC_CMD_OPT_ANSI);
-    mCompilerCompatibleIndex.append(CC_CMD_OPT_NO_ASM "gcc_cmd_opt_no_asm");
+    mCompilerCompatibleIndex.append(CC_CMD_OPT_NO_ASM);
     mCompilerCompatibleIndex.append(CC_CMD_OPT_TRADITIONAL_CPP);
 
     mCompilerCompatibleIndex.append(CC_CMD_OPT_ARCH);