The utility model provides a beat printer head belt cleaning device for 3D printer, including wasing pond (1) and rotatably supporting rotation axis (5) in wasing pond (1), wherein, rotation axis (5) have: rotate even windshield wiper board (7) that just set up in rotation axis (5) outside of axis around it equidistantly. The utility model discloses at least, can realize regularly clearing up the debris on beating printer head effectively at the printing in -process of 3D printer.