Abstract: This paper analyzes the temporal and spatial distribution of precipitation in Baishan. The demand of forest fire protection, forest growth, reservoir impoundment, etc. are summarized in details. Considering the current situation of artificial rain increase in Baishan city, the importance, relevant opinions and suggestions on economic and social benefits of the artificial weather influence in Baishan, are put forward. The average annual precipitation in Baishan City is 859.6 mm, but distribution in time and space are severely uneven. The forest coverage rate is 83 %, but forest fires are increasing year by year, so the demands of forest-economy, reservoir impoundment and droughts on agriculture are in outstanding. Since the 1990s, Baishan City started running the operations of artificial weather modification, at present, there are 30 ground operation-stations, and the annual rain(snow) operation capacity can reach up to 1-3 billion cubic meters.Based on following 3 typical cases, the Changbai Mountain Forest Fire Prevention Operation on May 29, 2012, the Qujiaying Reservoir Water Storage Operation in March 2018, and the Agricultural Drought Control Operation in July and August 2014, we analyzed the main role of artificial weather impact on forest fire prevention, reservoir impoundment and drought resistance in Baishan city. According to existing operating capacity in Baishan, the importance of economic and social benefits by the artificial weather influence in Baishan are estimated. Then it is concluded that the number of operations per year should be about 20 times, which is expected to produce ￥90 million in economic benefits. Therefore, it will be a higher input-output ratio for Baishan city.