The invention discloses an encrypted SSD (Solid State Disk) authentication method which comprises the following step of: dividing an SSD storage region into an authentication subregion and a data subregion, wherein the two subregions respectively have independent MBRs (Master Boot Record), the authentication subregion occupies a small part of the whole storage region and comprises MBR information, a micro-operating system, authentication software, backup information, logs and audit information, and the data subregion comprises MBR information and user data. According to the encrypted SSD authentication method, the SSD can be effectively encrypted, the data information integrity is ensured, the data information is prevented from being damaged and stolen, and the data storage safety requirement is met.