Fine blanking machine, including an upper plate, a lower plate and a die set between the upper plate and the lower plate, the upper plate and the lower plate are provided with guide pillars, the guide pillars are provided with springs, the bottom of the lower plate is provided with a frame, the frame is provided with a drive mechanism to control the up and down movement of the upper plate, the said frame is provided with a protection mechanism, the protection mechanism includes a sensing element to detect the human body and a control element to control the drive mechanism according to the detection signal of the sensing element. The guard mechanism includes a sensing element to detect human body and a control element to stop the operation of the driving mechanism according to the detection signal of the sensing element, the sensing element is set on the frame corresponding to the front side of the lower table plate, the sensing element is connected to the control element and the control element is connected to the driving mechanism, which automatically detects and locks itself to avoid accidental injury of human body close to the stamping area and improve safety.