i'm Iranian and i want to marry with Chinese girl.what is process in china embassy in Iran?

Hey, if you want to register your marriage in China, you should get a single status certificate issued by an agency authorized by the Iranian Foreign Affairs Ministry, then have it notarized, and then take it to the Chinese embassy for authentication. The authentication process takes five working days and costs 30 dollars. If you want to live in China in the future, you can apply for the S1 type or Z type entry permit. FYI, you cannot work with the S1 type.