1. Create an electronic signature. After the platform is registered and passed the enterprise identity authentication, users will get exclusive electronic signature and electronic seal. In addition, according to their own needs, users can also create and set up electronic seals by uploading and customizing seal templates locally. 2. Enterprise users who use electronic signature enter the signing page, initiate an electronic contract with the signing information, add a special electronic signature/seal, and then complete the willingness authentication and confirmation through face authentication, thus completing their own electronic contract signing link. 3. Verifying the electronic signature In order to verify the validity of the electronic signature, users can identify whether the content has been tampered with, the identity of the signer, the signing time and other information only by checking the digital certificate of the electronic signature, thus ensuring that the electronic contract signed with the electronic signature can be identified and the content cannot be tampered with.