Abstract: In the civil engineering management, the constructor usually make use of construction claim compensation to deal with engineering variation, which would no doubt increase the difficulty of claim compensation.Through analysing raspective differences in the definations of both engineering variation and construction claim compensation,and in treatment procedure and payment way,the paper proposes that the contractor should resonably utilize the items of engineering variation,and put the defects in the blueprints and technical specification,demanded modification of the owner,engineer' improper refusal and harsh inspection,etc.,to list into the engineering variation,and make it be legalized.Moreover,an illustration shows the effect that make contractors gain their inte
rest and reduce the loss.