Electronic contract is a legally recognized form of contract signing. An electronic contract loaded with reliable electronic signature, third-party timing service and tamper-proof technology has the same legal effect as a paper contract. The Electronic Signature Law stipulates that a reliable electronic signature has the same legal effect as a handwritten signature or seal, so it is recommended to choose a safe and qualified third-party electronic contract platform. Zhongxinqian is a pilot project for the development and application of national electronic contract standards. It can provide one-stop services, including signatory identity authentication, standard contract template calling, online contract drafting, online signing, electronic evidence preservation, online notarization and arbitration, and provide efficient and convenient services with legal effect for governments, enterprises and institutions.