The current safely appraisal for impounding is the technical basis for water conservancy and hydropower project impoundment acceptance.It is very important to ensure the safely impounding of reservoir，the reservoir must be certified by safely appraisal for impounding before it can be checked and accepted.This article combines the working practice of safely appraisal for impounding reinforcement of reservoirs authorized by identification unit，introduces the problems found and solutions on appraisal for impounding，it can be provided reference for the subsequent safely appraisal for impounding.