Punching machine with lubricating oil coating device

The utility model provides a punching machine with a lubricating oil coating device, which comprises a punching machine body, a working platform arranged in the punching machine body, a punching die arranged at the top of the working platform, and a coating support arranged on the working platform side by side with the punching die. A through hole pointing to the stamping die is formed in the coating support, a first rotating roller and a second rotating roller are rotationally connected in the through hole, the first rotating roller is located over the second rotating roller, an oil storage cavity is formed in the top of the coating support and filled with lubricating oil, and the lubricating oil is arranged in the oil storage cavity. An oil outlet hole communicating with the through hole is formed in the bottom of the oil storage cavity and located over the first rotating roller. When the punching machine is used for machining a plate, a worker does not need to manually coat the plate with lubricating oil,