Applicants who join the Party can formally enter the preparatory period only after they have been trained, studied, assessed and approved by the application for joining the Party. At this stage, party member is called preparing for party member. The preparatory period for preparing party member is one year, which is generally counted from the date when the Party branch meeting approves him to become a preparatory party member. It takes a certain period of time to study whether party member can fulfill his obligations as a party member, obey the party's resolutions and abide by the party's discipline after joining the Party, which is the main reason for the establishment of Preparatory party member.