Safety protection device and ultrasonic heat sealing machine

The utility model discloses a safety protection device and an ultrasonic heat sealing machine, the safety protection device comprises a first power line, a second power line, a button, an insulation part, a conductive part, a clamping device and a clamping plate, a clamping hole corresponding to the clamping device is formed in the clamping plate, the clamping device can be clamped in the clamping hole in a limited mode, and the button is arranged on the clamping plate. A gap is formed between the first power line and the second power line, the conductive part can penetrate through the gap, the first power line and the second power line can make contact with the conductive part for conduction, and when the clamping device is clamped and limited in the clamping hole, the conductive part does not make contact with the first power line and the second power line. According to the utility model, the conductive part, the insulating part and the separately arranged power line are arranged, when a fault needs to occu