Spraying control method and spraying device

The invention discloses a spraying control method and a spraying device, and the spraying control method comprises the steps: introducing gas and liquid into a nozzle, and mixing the gas and the liquid, so as to enable the nozzle to generate submicron or nanoscale liquid particles; and the nozzle is controlled to move along a preset path above the to-be-treated piece, so that the liquid particles enter a micron-sized space on the to-be-treated piece. According to the spraying control method provided by the invention, the nozzle can generate submicron or nanoscale liquid particles, and the sprayed liquid particles can fully enter the micron space of the to-be-treated part, so that the distribution uniformity of the liquid particles in the micron space is improved, and the spraying effect is improved; moreover, the particle size of the liquid particles is controllable, and different spraying modes can be selected according to actual process scenes, so that the spraying effect is optimized. 一种喷洒控制方法及喷洒装置，该喷洒控制方法