Based on weather conditions, GRAPES, FY2 inversion model products, radar echo and rainfall data, from the operation conditions, the potential for work, operation monitoring and early warning, homework evaluation four aspects on May 3, 2018 now points - who gives a plane cloud seeding are analyzed in detail, and the precipitation enhancement operation, after operation in radar echo intensity and coverage area significantly enhance, precipitation increased obviously, operation is small to moderate rain has fallen in the region.