Legal basis: Article 13 of the Regulations on the Work of Party Branches in China (for Trial Implementation) Party branches with a large number of people in party member or scattered places of work and residence in party member shall be divided into several party groups and set up a party group leader according to the principle of facilitating the organization of activities. The leader of the party group is appointed by the Party branch or recommended by the party group party member. The party group mainly implements the work requirements of the party branch and completes the tasks assigned by the party branch. The party group meeting is generally held once a month 1 time to organize party member to take part in political study, have a heart-to-heart talk and carry out criticism and self-criticism.