排水工程由管网、泵站和污水处理厂三大主要环节组成,它们之间是相互联系、相互制约、相辅相成的有机联系体。排水工程的主要特点是深埋于地下,隐蔽性强.运行维护管理费用高,使用周期长,属于社会公益性行业。排水工程的特殊性决定了排水工程档案具有专业性、技术性、综合性、多次反复使用和长期使用的特点。排水工程档案要遵循其形成规律,保持卷内文件材料的系统联系,全面准确、真实地反映出该工程从设计施工到竣工验收、交付使用的全过程,它在工程建设、管理、维护和改建扩建中起着至关重要的作用。哈尔滨市的排水工程建设,取得了长足的进步,极大地改善了人民生活条件和城市的投资环境。而档案管理却明显滞后于工程管理, Drainage project by the pipe network, pumping station and sewage treatment plant composed of the three main links between them is interconnected, mutual restraint, complementary organic links. Drainage project is mainly characterized by deep underground, concealed strong operation and maintenance costs, long life cycle, belong to the social welfare industry. Drainage project determines the specificity of the drainage project files with professional, technical, comprehensive, repeated use and repeated use of long-term characteristics. The drainage engineering archives should follow the formation rules and maintain the system connection of the documents and materials in the rolls. It fully and accurately reflects the whole process of the project from design and construction to completion and acceptance and delivery. It is used in engineering construction, management, maintenance and reconstruction Expansion plays a crucial role. The drainage construction in Harbin has made great strides and has greatly improved people’s living conditions and urban investment environment. The file management is obviously lagging behind the project management,