A top-jet type spray etching machine comprises an etching machine body and a liquid medicine circulating system, wherein the etching machine body is mainly composed of a transition area, a cleaning area and an etching area, spraying devices are arranged on the cleaning area and the etching area respectively, synchronous belt conveying devices are arranged below the transition area and the cleaning area, a servo drive motor is arranged below the transition area, a slide rail penetrating through the transition area, the cleaning area and the etching area is arranged below the etching machine body, etching basket tools are placed on the slide rail, the synchronous belt conveying devices are connected and linked through push rods, and the liquid medicine circulating system is mainly composed of a DI water tank body, a chemical liquid medicine tank body, a heating tank, corresponding pipelines, corresponding valves and a circulating pump. In the glass panel etching process, the temperature, pressure, flow and the like of liquid medicine can be controlled in a full-automatic mode, double-sided waterfall etching is conducted on glass panel, no manual operation is needed in the whole working process, cleaning and etching are both completed automatically, and the etching precision and efficiency are remarkably improved.