三峡工程是世界最大的多目标开发的综合利用工程。工程规模巨大，技术复杂，具有防洪、发电、航运等巨大的综合效益。文章论述了工程建设过程中已经和将要解决的一大批重大科学技术难题，并指出其将对水利水电科学技术的发展起到重要的促进作用。

As the largest in the world by far,the Three Gorges Project (TGP )is a multipurpose development and comprehensive utilization project that can bring a huge benefit by combining flood control, electric prowler generation and shipping. It is of large scale and technically complex. This paper expounds a large number of major technical problems that has been,and will be, solved in the construction of the project, and points out that the solution of these problems will be an important urge to the development of both water conservancy and hydraulic power generation science and technology.