An electronic insurance policy is a set of digitally signed data blocks. This data block contains the original insurance policy, that is, the content of the insurance policy that the user can see through the browser, the electronic signature of the issuer and the digital certificate used when issuing. These contents are combined through the calculation of mathematical algorithm in accordance with PKI system. Therefore, any modification to this data block will be found during verification, and it is impossible for the tampered electronic insurance policy to pass verification.