本文介绍了双城市境内松花江、拉林河河道整治中所筑过水坝，长期采用土坝或堆石坝型式，存在石料昂贵、造价高；上坝断面大、费工费时、安全性能差的缺点。而冬季施工的过水砂坝技术较好地解决了这一问题，且在实践中作了成功的运用，经济和社会效益显著。 This paper introduces the dams built in the Songhua River and Lalin River courses in Shuangcheng City. The earth dam or rockfill dam type has been used for a long time, which has the problems of high cost and high stone cost. The section of the dam is large, the labor cost is long and the safety performance is poor Disadvantages. The technology of over-water sand dam construction in winter solves this problem well, and has been successfully applied in practice with remarkable economic and social benefits.