diff --git a/src/global/opeParam.ts b/src/global/opeParam.ts
index d398aa0..c6e40b8 100644
--- a/src/global/opeParam.ts
+++ b/src/global/opeParam.ts
@@ -1,5 +1,6 @@
 import * as assert from 'assert';
 import * as fs from 'fs';
+import { hdlFile } from '../hdlFs';
 
 import { Arch, PrjInfo, RawPrjInfo, resolve, toSlash } from './prjInfo';
 
@@ -141,6 +142,22 @@ class OpeParam {
     public resolvePathExtension(relPath: RelPath): AbsPath {
         return resolve(this._extensionPath, relPath);
     }
+
+    /**
+     * get User's property.json
+     */
+    public getUserPrjInfo() {
+        const propertyJsonPath = this.propertyJsonPath;
+        const userPrjInfo = new PrjInfo();
+        if (fs.existsSync(propertyJsonPath)) {
+            const rawPrjInfo = hdlFile.readJSON(propertyJsonPath);
+            userPrjInfo.merge(rawPrjInfo);
+        } else {
+            // use default config instead
+            const rawPrjInfo = hdlFile.readJSON(this.propertyInitPath);
+            userPrjInfo.merge(rawPrjInfo);
+        }
+    }
 };
 
 const opeParam: OpeParam = new OpeParam();
diff --git a/src/manager/libPick.ts b/src/manager/libPick.ts
index 0c933ad..62458b8 100644
--- a/src/manager/libPick.ts
+++ b/src/manager/libPick.ts
@@ -145,6 +145,8 @@ class LibPick {
 
             if (selectedPath && hdlPath.exist(selectedPath)) {
                 const ppyPath = hdlPath.join(opeParam.workspacePath, '.vscode', 'property.json');
+
+                // 抽象这块
                 let prjInfo = null;
                 // 如果存在，则读取用户的配置文件，否则使用默认的
                 if (!hdlPath.exist(ppyPath)) {
@@ -152,11 +154,10 @@ class LibPick {
                 } else {
                     prjInfo = hdlFile.readJSON(ppyPath);
                 }
-                
+
                 if (selectedPath.includes(this.commonQuickPickItem.path!)) {
                     // this is a module import from common, use relative path
-                    const relPath = selectedPath.replace(this.commonQuickPickItem.path + '/', '');
-                    
+                    const relPath = selectedPath.replace(this.commonQuickPickItem.path + '/', '');                    
                     appendLibraryCommonPath(relPath, prjInfo);
                 } else {
                     // this is a module import from custom, use absolute path
diff --git a/src/manager/prj.ts b/src/manager/prj.ts
index 8978ba5..fc4184a 100644
--- a/src/manager/prj.ts
+++ b/src/manager/prj.ts
@@ -86,7 +86,6 @@ class PrjManage {
     public initialise() {
         
     }
-
 }
 
 const prjManage = new PrjManage();