【正文】 e divided into two categories: construction claims and claims costs. Claim Construction Engineering refers to, as a result of nonresponsibility of the contractor causes delay in the construction process for approval of the contract extended period of the claim. Construction units of the purpose of the claim period is usually two: first, removed or have been shirking its responsibility to extend the duration of the contract responsibility, so that they do not pay as much as possible or not to extend the time limit to pay fines。 1 Talking about the project claim the prevention and treatment Abstract： In project management, construction claim is a plex business management. Today39。s domestic project contracting market is being more petitive, successful lowcost has bee a regular operation, the operating contractor for the construction of the claim is very important to achieve the goal. The significance of the claim and described the concept for today39。 II is due to 2 extension of the period and The cost of damage caused by the claim. If the project is not the responsibility of delay caused by the construction, and construction units have been approved construction project claim, the construction units can be made as a result of measures taken to speed up and increase the cost of claims. The cost of claims is based on the principle of pensation for actual losses, and its purpose is to require financial pensation. When the reality of the conditions of the contract and inconsistent, leading to increase in contractor expenses in excess of the requirements of the plan39。s design and construction schedule on time in accordance with the provision of quality equipment, materials, engineering, can not by the owners of the requirements and design specifications and the specifications for the construction, so as to affect the project construction The progress and quality, leading to the owners, with a total package side, the subside, the equipment and materials suppliers mutual claims. 3 Works to prevent and deal with the claims. The project Prevention claims Of the above factors in the analysis of the project claim, the claim works, as owners of the management of the main square in the prevention and treatment efforts must be dealt with the principles and specific ways to deal with, making a reasonable claim for pensation evidence to ensure the progress of the construction project, quality, the cost of a virtuous circle. Should do the following specific areas: To strengthen the claim of forwardlooking prevention. As owners, supervision engineers and contractors must use their experience and the relevant regulations, to take active measures to prevent foreseeable claims the incident occurred. Such as strengthening the management of the contract, to strengthen preparatory work to strengthen the design review, and so on. However, if the claim is indeed taken place, should take active measures to control claims costs to a minimum. In market economy conditions, the contract is binding both A and B criterion of economic behavior. As the owner39。 have to pay attention to data collection, information truthfulness, reliability, and after that must deal with claims in a timely manner。s construction contracts (GF19992020) in the light of international mon FIDIC conditions of contract claim against the statute of limitations provides as follows: The claim occurred within 28 days of Engineers to issue a claim Notice