Door control system on basis of face identification technologies and unlocking method

The invention discloses a door control system on the basis of face identification technologies and an unlocking method. The door control system comprises a shell, a door handle, an interaction unit, a locking unit, a trigger unit and a face identification unit. The interaction unit is positioned above the door handle and is embedded in the shell of an outdoor portion, and on and off of the locking unit can be controlled by the trigger unit; the bottom surface of an operation surface of the interaction unit is protruded out of the surface of the shell of the outdoor portion, and in other words, an acute angle is formed between the operation surface of the interaction unit and the shell of the outdoor portion; the face identification unit comprises a data storage module, an image acquisition module, a video processing module and a judgment module. The door control system and the unlocking method have the advantages that the faces of users can be scanned by the aid of high-definition infrared cameras and double-