An intelligent control method integrating ultrasonic ranging and attribute information of human images is characterized in that when a first human image existing in front of a cabinet door of a back brake cabinet connected with an electrical device and having the attribute information matched with the attribute information of a back brake operation executor corresponding to the back brake cabinetand a second human image having the attribute information matched with the attribute information of a back brake operation monitoring person corresponding to the back brake cabinet are found by combining with ultrasonic ranging, a pickup device located on the cabinet door of the back brake cabinet is controlled to acquire first voice produced by a first person and second voice produced by a secondperson, the first voice is converted into a first voice signal, the second voice is converted into a second voice signal, and the first voice signal and the second voice signal are synthesized to obtain a verification sound signal; if the verification sound signal is matched with a legal door-opening sound signal corresponding to the cabinet door of the back brake cabinet, the cabinet door of theback brake cabinet is controlled to execute opening operation. The cabinet door of the back brake cabinet of the electrical device can be safely and quickly controlled to open.