diff --git a/testable-agent/src/main/java/com/alibaba/testable/agent/constant/ConstPool.java b/testable-agent/src/main/java/com/alibaba/testable/agent/constant/ConstPool.java
index de97780..723c99a 100644
--- a/testable-agent/src/main/java/com/alibaba/testable/agent/constant/ConstPool.java
+++ b/testable-agent/src/main/java/com/alibaba/testable/agent/constant/ConstPool.java
@@ -9,6 +9,8 @@ public class ConstPool {
     public static final String FIELD_TARGET_CLASS = "targetClass";
     public static final String FIELD_SCOPE = "scope";
 
+    public static final String PROPERTY_USER_DIR = "user.dir";
+
     public static final String MOCK_WITH = "com.alibaba.testable.core.annotation.MockWith";
     public static final String DUMP_TO = "com.alibaba.testable.core.annotation.DumpTo";
     public static final String MOCK_DIAGNOSE = "com.alibaba.testable.core.annotation.MockDiagnose";
diff --git a/testable-agent/src/main/java/com/alibaba/testable/agent/transformer/TestableClassTransformer.java b/testable-agent/src/main/java/com/alibaba/testable/agent/transformer/TestableClassTransformer.java
index e9c3219..0432128 100644
--- a/testable-agent/src/main/java/com/alibaba/testable/agent/transformer/TestableClassTransformer.java
+++ b/testable-agent/src/main/java/com/alibaba/testable/agent/transformer/TestableClassTransformer.java
@@ -20,11 +20,11 @@ import java.lang.instrument.ClassFileTransformer;
 import java.security.ProtectionDomain;
 import java.util.List;
 
-import static com.alibaba.testable.agent.constant.ConstPool.CGLIB_CLASS_PATTERN;
-import static com.alibaba.testable.agent.constant.ConstPool.KOTLIN_POSTFIX_COMPANION;
+import static com.alibaba.testable.agent.constant.ConstPool.*;
 import static com.alibaba.testable.agent.util.ClassUtil.toJavaStyleClassName;
 import static com.alibaba.testable.core.constant.ConstPool.DOLLAR;
 import static com.alibaba.testable.core.constant.ConstPool.TEST_POSTFIX;
+import static com.alibaba.testable.core.util.PathUtil.createFolder;
 import static org.objectweb.asm.Opcodes.ACC_STATIC;
 
 /**
@@ -34,7 +34,6 @@ public class TestableClassTransformer implements ClassFileTransformer {
 
     private static final String FIELD_VALUE = "value";
     private static final String FIELD_TREAT_AS = "treatAs";
-    private static final String FIELD_PATH = "path";
     private static final String COMMA = ",";
     private static final String CLASS_NAME_MOCK = "Mock";
 
@@ -241,7 +240,11 @@ public class TestableClassTransformer implements ClassFileTransformer {
         if (cn.visibleAnnotations != null) {
             for (AnnotationNode an : cn.visibleAnnotations) {
                 if (toJavaStyleClassName(an.desc).equals(ConstPool.DUMP_TO)) {
-                    return AnnotationUtil.getAnnotationParameter(an, FIELD_PATH, null, String.class);
+                    String path = AnnotationUtil.getAnnotationParameter(an, FIELD_VALUE, null, String.class);
+                    String fullPath = PathUtil.join(System.getProperty(PROPERTY_USER_DIR), path);
+                    if (createFolder(fullPath)) {
+                        return fullPath;
+                    }
                 }
             }
         }
diff --git a/testable-agent/src/main/java/com/alibaba/testable/agent/util/GlobalConfig.java b/testable-agent/src/main/java/com/alibaba/testable/agent/util/GlobalConfig.java
index 5a0d565..a023537 100644
--- a/testable-agent/src/main/java/com/alibaba/testable/agent/util/GlobalConfig.java
+++ b/testable-agent/src/main/java/com/alibaba/testable/agent/util/GlobalConfig.java
@@ -6,6 +6,9 @@ import com.alibaba.testable.core.util.LogUtil;
 
 import java.io.File;
 
+import static com.alibaba.testable.agent.constant.ConstPool.PROPERTY_USER_DIR;
+import static com.alibaba.testable.core.util.PathUtil.createFolder;
+
 /**
  * @author flin
  */
@@ -14,7 +17,6 @@ public class GlobalConfig {
     private static final String MUTE = "mute";
     private static final String DEBUG = "debug";
     private static final String VERBOSE = "verbose";
-    private static final String USER_DIR = "user.dir";
     private static final String DISABLE_LOG_FILE = "null";
 
     private static final String TESTABLE_AGENT_LOG = "testable-agent.log";
@@ -43,7 +45,10 @@ public class GlobalConfig {
     }
 
     public static void setDumpPath(String path) {
-        dumpPath = path;
+        String fullPath = PathUtil.join(System.getProperty(PROPERTY_USER_DIR), path);
+        if (createFolder(fullPath)) {
+            dumpPath = fullPath;
+        }
     }
 
     public static String getPkgPrefix() {
@@ -64,13 +69,13 @@ public class GlobalConfig {
 
     public static void setupLogRootPath() {
         if (logFile == null) {
-            String baseFolder = PathUtil.getFirstLevelFolder(System.getProperty(USER_DIR),
+            String baseFolder = PathUtil.getFirstLevelFolder(System.getProperty(PROPERTY_USER_DIR),
                 Object.class.getResource("/").getPath());
             if (!baseFolder.isEmpty()) {
                 LogUtil.setGlobalLogPath(PathUtil.join(baseFolder, TESTABLE_AGENT_LOG));
             }
         } else if (!DISABLE_LOG_FILE.equals(logFile)) {
-            LogUtil.setGlobalLogPath(PathUtil.join(System.getProperty(USER_DIR), logFile));
+            LogUtil.setGlobalLogPath(PathUtil.join(System.getProperty(PROPERTY_USER_DIR), logFile));
         }
     }
 }
diff --git a/testable-core/src/main/java/com/alibaba/testable/core/annotation/DumpTo.java b/testable-core/src/main/java/com/alibaba/testable/core/annotation/DumpTo.java
index 6f365d4..02b7330 100644
--- a/testable-core/src/main/java/com/alibaba/testable/core/annotation/DumpTo.java
+++ b/testable-core/src/main/java/com/alibaba/testable/core/annotation/DumpTo.java
@@ -14,8 +14,8 @@ public @interface DumpTo {
 
     /**
      * dump class byte code to specified folder
-     * @return an exist folder
+     * @return folder path relate to the project root path
      */
-    String path() default "";
+    String value();
 
 }