The invention discloses an off-network type self-help authorized smart door lock. The off-network type self-help smart door lock comprises a smart door lock body, wherein the smart door lock body comprises a smart lock, a background server, a wireless network, and a client; the background server is connected with the wireless network; the wireless network is connected with the smart lock; the client is connected with the background server; the smart lock comprises a main control module, input equipment, a peripheral indication module, a peripheral identification module, a password parsing verification module, a system clock unit, an in-lock storage unit, and a mechanical part. By means of the off-network type self-help authorized smart door lock, human-computer interaction is realized through APP, WEB, etc., a background password is generated after combination, and password aging can be set through APP, WEB, etc. A user self-help authorizes the fingerprint, an IC card, an ID card and the like through the password aging, the security performance is higher, the lock is convenient for remote management, the door can be opened regardless of the presence or absence of a network, the smart lock can be conveniently mounted and fixed, and time and effort are saved.