The invention discloses a system and method for multi-system authentication and synchronization in mobile equipment. The system is composed of a unified authentication assembly SDK and a unified authentication platform, wherein the unified authentication assembly SDK comprises an equipment fingerprint module, a sandbox module, a certificate module, a secret key management module, an algorithm module and an authentication logic module; and the unified authentication platform comprises a user management module, an authority management module, an SSO module, an equipment management module, a mail service module, a log module, an interface management module, a push module, a text message/voice module, a face module, a voiceprint module and a fingerprint module. The system and method can be applied to service scenes where existing enterprise services migrate to mobile ends, provide authentication and state synchronization on the mobile ends for enterprise users, through an innovative equipment fingerprint generation algorithm, a matching algorithm and a system activation process, the users can bind their mobile phones with enterprise accounts, and thus the enterprise accounts can realize login and state synchronization on the mobile equipment.