The construction of Party branch of the retired is an significant component part of the Party's grassroots organization developments.Paying close attention to building Party branch of the retired plays an important role in carring out the decision from the Chinese Central Party Committee on commands of respecting and caring about the retired leaders and reinforcement of the construction of the retired.This paper illustrated a series of problems including the significance of building Party branch of the retired,the roles,the major tasks,working principles and methods of Party branch of the retired,prolonged action of building Party branch and the promotion of the development of Party branch of the retired with scientific methods.