Abstract: A new applicable tool will be provided for satellite detection of the conditions of precipitation enhancement.A precipitation process of stratiform clouds from 12 May, 2019 was selected to analyze rainfall enhancement with FY4A satellite retrieval products.In this paper, observation data from the Doppler weather radar, ground meteorological stations and air pollutant monitoring are used to analyze the conditions and effects of the artificial precipitation operations during this dust transmission process. The results show that: ①Most parts of Sichuan basin are covered with medium-low clouds with rich supercooled water, and some parts have high clouds, the effective radius(Re) of cloud base was 5~18μm ; The characteristics of cloud evolution from noon to dusk, the clouds were rich in supercooled water but lack of ice crystals or large drops; ②There was a good opportunity for rainfall enhancement because of the existence of sustained and stable stratiform clouds; ③It shows that after the artificial rainfall enhancement operations, the operation clouds continue to develop, the peak rainfall time is extended, the overall rainfall increases, the air pollution is reduced, the air quality index of the operation areadecreased from 82 to 29, PM₁₀ decreased 94μg/m³ to 28μg/m³, PM2.5 decreased from 49μg/m³ to 17μg/m³; while the three contrast areasdid not carry out artificial precipitation enhancement operations, and the air quality index continued to exceed the standard from several hours.