Microirrigation belt punching machine

The utility model relates to a punching machine of micro irrigate band, wherein a frame is provided with a cam, a punch support, a backing board, and a punch board. The punch support is provided with a rotation shaft and a punch needle, the punch support is provided with a punch support sheath mounted on the frame via a punch support shaft, the punch support sheath is arranged with a return spring under, the rotation shaft is contacted with the cam, the backing board is under the punch support, the punch board is arranged outside the end of the backing board, the punch board is horizontally arranged with a through hole for passing a micro irrigate band, while the punch board is vertically provided with a guide hole for the up and down motions of the punch needle, and the guide hole is crossed with the through hole. The utility model can avoid door curtain problem generated in prior art, to confirm product quality, improve working efficiency and reduce cost.