Modern Chinese post emerged from the Customs，but due to some historical reasons，post sovereignty has been dominated by the imperialist countries. The starting of “Customer post”，particularly，not only destroyed Chinese post sovereignty， but also infracted Chinese customs economy. Chinese successive governments and people have made tireless efforts to withdraw post sovereignty， by offering national post，unifying post administration， joining the UPU， signing foreign charter and so on， our country canceled “customer post” finally， unified the post， and propelled the modern Chinese post service forward.