Unlocking device and unlocking method

The invention discloses an unlocking device and an unlocking method.The device comprises a first wireless communication module, a processor and a wireless terminal.The first wireless communication module and the processor are arranged in a door lock.The wireless terminal comprises a fingerprint acquisition module and a second wireless communication module.The fingerprint acquisition module is used for acquiring fingerprint information of an operating body.The first wireless communication module is used for receiving the fingerprint information sent by the second wireless communication module.The processor is used for determining whether the fingerprint information is matched with preset fingerprint information in the door lock or not.If the fingerprint information is matched with the preset fingerprint information, the door lock is controlled to be unlocked.