延安时期纵贯中共党史土地革命、抗日战争、解放战争三个历史阶段,是中国共产党各项事业走向成熟,最终成立新民主主义国家的重要历史时期。党的保密工作在这一时期同样从最初的地下工作,逐渐走向公开与半公开化。这一时期党的保密工作不仅从发展走向完善,同时在保密工作实施的过程中也形成了许多值得借鉴的优良传统。在这一时期,根据不同阶段党的中心工作适时调整保密工作的中心任务;科学处理公开工作和秘密工作之间的关系是党在这一时期保密工作最具特色的;积极探索保密工作与走群众路线相结合的途径是党克敌制胜的法宝。 The three historic stages of the Agrarian Revolution, the Anti-Japanese War and the Liberation War in the period of Yanan were the important historical periods during which the Chinese Communist Party’s various undertakings matured and finally established the new-democratic state. During this period, the party’s secrecy work also started from the original underground work and gradually became open and semi-open. During this period, the party’s secrecy work not only went from development to perfection, but also formed many excellent traditions worthy of reference in the process of the implementation of secrecy work. During this period, the central task of confidential work was adjusted according to the central work of the party in different stages; the relationship between the open work and the secret work scientifically was the most distinctive feature of the confidential work of the party during this period; the active exploration of confidential work and walking The way that the mass line is combined is the magic weapon for the party to defeat the enemy.