The mechanism of claim for compensation and its operation are an important guarantee to achieve a claim.The essence of the mechanism of claim for compensation and the factors influencing the operation of the mechanism are expounded in the paper on the basis of the analysis of the definition and formation of the mechanism of claim for compensation.The predicament and its cause in operation of the mechanism of claim for compensation in our country is analyzed and concrete measures and suggestions to improve our mechanism of claims and the environment of compensation claiming are presented.