The invention provides a blockchain prison visit management method which comprises the following steps: S110, enabling an information acquisition module to start working; S120, judging whether the information acquisition module captures images of personnel to pass through the door access, if so, performing the next step, if not, returning to the step S110; S130, judging whether the personnel are prison policemen or the staff according to the obtained images of personnel to pass through the door access, if yes, performing the next step, if not, returning to the step S110; S140, judging whetherthe prison policemen or the staff are at the normal working hours, if so, opening the door access, closing the door access after passing, and storing the passing data; if not, performing the next step; S150, keeping the door access closed. According to the method disclosed by the invention, the access security control of the prison policemen and the other staff can be realized by a face recognition technology, the personnel investment is reduced, the management efficiency is improved, and the potential safety hazards can be reduced.