The invention provides a multi-security authorization method of an intelligent lock in order to solve a problem that an intelligent lock at present cannot support multi-security authorization or provide an administrator a multi-security authorization strategy for flexible configuration. According to the multi-security authorization method provided by the invention of the intelligent lock, an administrator user can configure various flexible multi-security authorization methods through an intelligent mobile phone APP or a cloud terminal, multi-security authorization configuration is defined through configuring different key combinations such as a Bluetooth key, a password key, an RFID key and a fingerprint key, whether multi-security authorization is required to pass cloud terminal authentication or not can also be defined, and whether the intelligent lock is driven to open the door or not is decided through matched multi-security authorization configuration.