【正文】 bed the concept for today39。s domestic construction projects in claims management problems were analyzed and the corresponding countermeasures and suggestions of the project and counterclaims both sides claim the contract is an indispensable business ponent. Based on the analysis of the factors that claims the project, discussed the contract on the implementation of the project claim the deal with the principles and specific treatment. Key words: engineering claim prevention deal with 1. The definition and classification of claims Claim the project is the fulfillment of the contract, the contract due to the other party did not fulfill its obligations under the contract and this led to losses, other demands for pensation or the right to pensation. The incidence of claims is a twoway, as long as the contract side of the responsibility and obligation not to achieve contract, or to provide the conditions inconsistent with the contractual status, there are claims that may arise. It is also a kind of a right, under normal circumstances, the claim refers to the contractor in the implementation of the contract process, the reasons for their nonextension of the project, and require owners to increase the cost of pensation for the loss of a claim. The owners belong to the construction unit should bear the responsibility for the cause, and the actual loss to the construction of requests for pensation, known as the anticlaim. The purpose of their claims can be 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。s managers should pay attention to fully and strictly carry out the contract. Before signing the contract should be repeated, as appropriate, the terms of the contract, pay attention to the strict letter of the contract documents, in order to prevent the 4 implementation of the contract process as a result of loopholes in the text caused by the opportunity to claim, resulting in additional investment. In the design of management should strive to obtain the contract by design drawings, data, and units designed to improve the quality of design, conditions permitting the introduction of the design petition, designed to improve the quality of service. 〖 JP2〗 through the design of the credibility of the tender selection, design, management capacity in areas such as better design of the unit, designed to reduce as much as possible the reasons for increase in the risk of project cost, the latter designed to improve the quality of service. In the supply of materials, equipment and materials should be done on time and the supply, quality volume. As far as possible to avoid the supply of material specifications of the type, variety and not caused by the drawings of alternative materials. The price may rise to the claim by the construction tender will be taken to increase the risk of a package as a death order to guard against the practice, that is, in business contracts, according to the length of period, the market price trend foreca