目前,淡水资源日趋紧缺,为了增加水资源,各国纷纷发展海水淡化技术,以此做为水资源的重要补充和战略储备,是解决淡水资源危机的战略选择和重要措施,对建设资源节约型社会和环境友好型社会具有战略意义。本文主要介绍了国内外海水淡化工程概况,对比国内目前的差距,为海水淡化配套政策出台提供理论基础。 At present, freshwater resources are increasingly scarce. In order to increase water resources, all countries have developed seawater desalination technologies in order to make them an important supplement to and strategic reserve for water resources. It is a strategic choice and an important measure to solve the crisis of freshwater resources. It is of great significance to building a resource-saving society And environment-friendly society is of strategic importance. This article mainly introduces the general situation of desalination project at home and abroad, compares the current domestic disparity and provides the theoretical basis for the introduction of supporting policies for desalination.