The invention relates to a fast analysis and verification method of X509 digital certificate, which comprises following steps: 1) on the basis of structure characteristics, dismantling the X509 digital certificate into a certificate main body, a certificate signature algorithm identification and a certificate signature value; 2) on the basis of coding format of X509 digital certificate, locating and analyzing the respective primary key from the certificate main body; 3) establishing an index list on the basis the location information of all of the analyzed primary key, and storing the location information of all of the primary key in the index list; when reusing the certificate primary key information, directly reading the index list established in step 3. The invention improves the security transaction processing efficiency and reduces the consumption of the system resource and then provides a huge convenience to the follow-up access.