介绍水电工程实施过程中由承包商或施工单位提出的非必要变更产生的原因,并从加强对设计方的制约、业主自身控制力度、合理确定工程变更价款以及工程变更管理信息化等方面提出了具体措施,可供从业人员参考。 This paper introduces the reasons for the unnecessary changes proposed by the contractors or contractors during the implementation of the hydropower project and puts forward some suggestions on how to improve the design constraints, the owners’ own control, reasonably determine the change of the project cost and the engineering change management information Specific measures, for practitioners reference.