各级党政机关,特别是县以上各级领导机关,为了传达贯彻党和国家的方针、政策,发布和下达命令、指示、决定、决议,请示和答复问题,指导和商洽工作,报告各种情况,交流先进经验等,每天都要形成和使用大量的文字材料.对在公务活动中形成和使用的各种文字材料的处理,就是文书工作,其中包括对公文的筛选工作. Party and government organs at all levels, especially the leading organs at or above the county level, in order to convey the principles and policies for the implementation of the party and the state, issue and issue orders, directions, decisions and resolutions, ask and answer questions, guide and negotiate work, Situation and exchanging advanced experience, etc. A large amount of written materials are formed and used every day, and the processing of various written materials formed and used in official activities is clerical work, including the screening of official documents.