Behavior detection method and device, equipment and computer storage medium

The embodiment of the invention provides a behavior detection method and device, equipment and a computer storage medium. The behavior detection method comprises: obtaining the positions of a target detection frame of a pedestrian and a metro platform screen door in a monitoring image; identifying a preset part of a pedestrian in the target detection frame, and obtaining a first position of an arm in the preset part; when the first position of the arm of the pedestrian is located in a preset area where the shielding door is located, determining a vertical line from the head of the pedestrian to a straight line corresponding to the shielding door; determining an intersection point of a straight line where shoulders and wrists of pedestrians are located and a straight line corresponding to the shielding door; and when it is determined that the intersection point is below the vertical line, determining that the behavior information of the pedestrian is metro platform screen door climbing. According to the embodi