diff --git a/centos2anolis.py b/centos2anolis.py
index 94c2f9898765f6f6dba3ce6626a7c6a0502a1b7c..0e9cd698c63b1798fe35f0f76d22907f7cbe9970 100644
--- a/centos2anolis.py
+++ b/centos2anolis.py
@@ -13,9 +13,10 @@ import sys
 import shutil
 import argparse
 import platform
+import urllib.request
 
 yum_url="https://mirrors.openanolis.org/anolis/"
-github_url="http://codeup.openanolis.cn/codeup/migration/centos2anolis"
+github_url="https://gitee.com/anolis/centos2anolis"
 repostr_an7 = '''[an7_os]
 name=AnolisOS-7 - OS
 baseurl=http://mirrors.openanolis.org/anolis/7/os/$basearch/os
@@ -441,6 +442,14 @@ def main(reinstall_all_rpms=False, verify_all_rpms=False, accelerate=False, vers
         print("Could not locate your repository directory.")
         sys.exit(1)
 
+    print("Backing up and removing old repository files...")
+    old_version = backup_repofiles(old_version)
+
+
+    print("Backing up and removing 3rd-part repository files...")
+    subprocess.run("mkdir /etc/yum.repos.d/migration-bak", shell=True)
+    subprocess.run("mv $(find /etc/yum.repos.d/*.repo) /etc/yum.repos.d/migration-bak", shell=True)
+
     repofile = os.path.join(reposdir, 'switch-to-anolis.repo')
     with open(repofile, 'w') as f:
         if centosversion == 7:
@@ -451,10 +460,22 @@ def main(reinstall_all_rpms=False, verify_all_rpms=False, accelerate=False, vers
     if accelerate:
         change_repo_mirror(reposdir, 'switch-to-anolis.repo')
 
+    print("check network environment")
+    dst_url = "http://mirrors.cloud.aliyuncs.com"
+    internal_ecs = False
+    try:
+        dst_status = urllib.request.urlopen(dst_url, timeout=5).code
+        internal_ecs = True
+        subprocess.run('sed -i \'s/mirrors.openanolis.org/mirrors.cloud.aliyuncs.com/g\' /etc/yum.repos.d/switch-to-anolis.repo', shell=True)
+        subprocess.run('sed -i \'s/mirrors.openanolis.cn/mirrors.cloud.aliyuncs.com/g\' /etc/yum.repos.d/switch-to-anolis.repo', shell=True)
+        subprocess.run('sed -i \'s/mirrors.aliyun.com/mirrors.cloud.aliyuncs.com/g\' /etc/yum.repos.d/switch-to-anolis.repo', shell=True)
+        print("check internal network environment is True")
+    except Exception as err:
+        print(err)
+        pass
+
     print("========= Start converting =========")
 
-    print("Backing up and removing old repository files...")
-    old_version = backup_repofiles(old_version)
 
     print("Removing CentOS-specific yum configuration from /etc/yum.conf ...")
     with open('/etc/yum.conf', 'r') as f:
@@ -494,6 +515,11 @@ def main(reinstall_all_rpms=False, verify_all_rpms=False, accelerate=False, vers
     if accelerate:
         change_repo_mirror(reposdir, 'AnolisOS-')
 
+    if internal_ecs:
+        subprocess.run('sed -i \'s/mirrors.openanolis.cn/mirrors.cloud.aliyuncs.com/g\' /etc/yum.repos.d/*.repo', shell=True)
+        subprocess.run('sed -i \'s/mirrors.openanolis.org/mirrors.cloud.aliyuncs.com/g\' /etc/yum.repos.d/*.repo', shell=True)
+        subprocess.run('sed -i \'s/mirrors.aliyun.com/mirrors.cloud.aliyuncs.com/g\' /etc/yum.repos.d/*.repo', shell=True)
+
     print("Installing base packages for Anolis OS...")
     subprocess.run('yum clean all', shell=True)
     cmd = 'yum shell -y <<EOF\n\
@@ -599,6 +625,12 @@ EOF'
         add_boot_option()
     else:
         subprocess.run('grub2-mkconfig -o /boot/grub2/grub.cfg', shell=True)
+   
+    print("reset 3rd-part repository files...")
+    subprocess.run("mv /etc/yum.repos.d/migration-bak/* /etc/yum.repos.d", shell=True)
+    subprocess.run("rm -rf /etc/yum.repos.d/migration-bak", shell=True)
+    subprocess.run("yum clean all", shell=True)
+    subprocess.run("yum makecache", shell=True)
 
     print("Switch complete. Anolis OS recommends rebooting this system.")
 
diff --git a/centos2anolis.spec b/centos2anolis.spec
index 90f1682463e0bd081159dc8804de01798433f920..42530bb8d1418d9ccf800bc57f3fd9f665f2cc9d 100644
--- a/centos2anolis.spec
+++ b/centos2anolis.spec
@@ -1,6 +1,6 @@
 Name:           centos2anolis
 Version:        0.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Transfer CentOS to Anolis.
 
 License:        MIT
@@ -37,6 +37,9 @@ install -m 755 %{SOURCE0} %{buildroot}/%{_sbindir}
 
 
 %changelog
+* Wed Jan 12 2021 mgb0110571 <mgb01105731@alibaba-inc.com> - 0.1-3
+- handle 3rd-part repository files and try using an internal web address
+
 * Wed Jan 05 2022 Chunmei Xu <xuchunmei@linux.alibaba.com> - 0.1-2
 - add check for i686 packages