diff --git a/bin/as.sh b/bin/as.sh
index 1edce18c2..6f2e26d4c 100755
--- a/bin/as.sh
+++ b/bin/as.sh
@@ -83,7 +83,9 @@ DIR=$(dirname -- "$(rreadlink "${BASH_SOURCE[0]}")")
 ARTHAS_HOME=
 
 # define arthas's lib
-ARTHAS_LIB_DIR=${HOME}/.arthas/lib
+if [ -z "${ARTHAS_LIB_DIR}" ]; then
+    ARTHAS_LIB_DIR=${HOME}/.arthas/lib
+fi
 
 # target process id to attach
 TARGET_PID=
diff --git a/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java b/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
index 75f73ade6..fb23af229 100644
--- a/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
+++ b/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
@@ -132,8 +132,14 @@ public class Bootstrap {
     private String disabledCommands;
 
 	static {
-        ARTHAS_LIB_DIR = new File(
-                System.getProperty("user.home") + File.separator + ".arthas" + File.separator + "lib");
+        String arthasLibDirEnv = System.getenv("ARTHAS_LIB_DIR");
+        if (arthasLibDirEnv != null) {
+            ARTHAS_LIB_DIR = new File(arthasLibDirEnv);
+        } else {
+            ARTHAS_LIB_DIR = new File(
+                    System.getProperty("user.home") + File.separator + ".arthas" + File.separator + "lib");
+        }
+
         try {
             ARTHAS_LIB_DIR.mkdirs();
         } catch (Throwable t) {