Which department is Wenxian water conservancy immigration certification app?

Wenxian water conservancy immigration certification app is an immigration department. According to the relevant public information, the entry and exit service of the government affairs hall belongs to the National Immigration Bureau to handle the relevant procedures. In order to facilitate people to handle entry and exit services quickly, the entry and exit service platform has an app platform, which can handle business on the APP line of the government service platform of the Immigration Bureau.