In Haikou, you can go directly to the office of Haikou Municipal People's Government, consult relevant departments and seek help. Secondly, you can call the service hotline of Haikou Municipal People's Government, ask relevant questions and obtain the required personnel service information. Moreover, you can also check the contact information of relevant departments through the official website of Haikou Municipal People's Government or other official media channels, and submit applications by telephone or online to obtain personnel services.