The present invention relates to a method for reducing air pollutants from China, which can remove air pollutants such as fine dust from China. According to an embodiment, the method for reducing air pollutants from China comprises: a platform arrangement step of arranging a platform provided with a water tank and a medicine tank on the western sea of the Korean Peninsula; a base construction step of constructing a base in the platform for a plurality of injection helicopter to take off and land; a medicine filling step of loading a medicine container on the injection helicopter and filling medicine of the medicine tank in the loaded medicine container; and a medicine injection step of taking off the injection helicopter to inject the medicine of the medicine container to a movement zone of the air pollutants when concentration of the air pollutants is above a predetermined level.