合同倒签是指双方在合同签署生效前已开始实际履行合同内容,而在合同项目履行过程中或在履行完毕后补签合同的现象。本文以天然气长输管道企业为例,结合笔者工作岗位和近年工作经验,就天然气长输管道企业合同倒签的原因及风险防控措施进行论述。 The contractual signature refers to the fact that both parties have already started to actually perform the contract before the signing of the contract, and the contracts are filled in during the performance of the contract or after the fulfillment of the contract. In this paper, gas pipeline enterprises, for example, combined with the author’s work experience and work experience in recent years, natural gas long-distance pipeline business contract down the reasons and risk prevention and control measures are discussed.