The invention relates to the technical field of anti-falling ejection safety nets, in particular to an anti-falling ejection safety net based on computer vision capture. The anti-falling ejection safety net comprises a device main body and a connecting plate, wherein the connecting plate is arranged at the top end of the device main body, a clamping mechanism is arranged in the device main body, the clamping mechanism comprises a motor, a first screw rod, a fixed clamping block, a movable clamping block, a first sliding groove, a second screw rod, a fixed clamping plate, a movable clamping plate, a threaded belt, a nut and a rotary knob, a cavity is formed in the device body, the motor is arranged in the cavity, the motor is fixedly connected with one end of the first screw rod, the other end of the first screw rod is movably connected with the interior of the device body through a bearing, and the first screw rod penetrates through the fixed clamping block. According to the anti-falling ejection safety net, the problems that most existing anti-falling safety nets are inconvenient to maintain and clean and most existing anti-falling safety nets are troublesome to install are solved.