The invention discloses a spray head with the buffering function for an injection molding machine. The spray head comprises a liquid conveying tube, a mounting plate, a first buffering plate, a second buffering plate, a connecting rod seat, a connecting tube clamping plate, a nozzle and a connecting tube, wherein the liquid conveying tube is positioned at the upper part of the mounting plate, and the mounting plate is connected with a base body of the injection molding machine; the mounting plate, the first buffering plate, the second buffering plate, the connecting tube seat and the connecting tube clamping plate are sequentially arranged from top to bottom; four first buffering rods are arranged between the mounting plate and the second buffering plate; two first buffering rods penetrate the first buffering plate, and first buffering springs which are positioned between the first buffering plate and the second buffering plate sleeve the bottom parts of the two first buffering rods; four second buffering rods which are sleeved with second springs are arranged between the second buffering plate and the connecting tube seat; the nozzle is mounted in the connecting tube, and the connecting tube penetrates the connecting tube clamping plate and the connecting tube seat; the connecting tube clamping plate is fixedly connected to the connecting tube seat.