The principle of state sovereignty is the paramount principle of the Chinese private international law, the parties can only choose the facultative rules, the parties of all civil and commercial cases with foreign elements can choose by agreement the Chinese law as the applicable law, the law governing contracts chosen by the parties must not evade the mandatory rules of the Chinese law, these are all influential opinions in the theories as well as the judicial practice of the Chinese private international law, however, they are in fact erroneous zones in the Chinese private international law. It needs hard work of people from many different walks of life to clear up these erroneous zones in order to further improve the private international law of our country, and the Chinese scholars of the private international law are duty.bound to finish this task.