Abstract: In order to use climate resources effectively and pursue the interests while avoiding disadvantages, planning and development Shaanxi apple industry reasonably, and promoting apple planting layout optimization and product healthfully and sustainably in county level. According to the relationship of flowering temperature of 5 apple plant counties which on behalf of the apple planting base its weather stations and it’s regional automatic weather stations, applying transplanting probability, borrowing the florescence temperature data from 1971 to 2012 of 5 apple plant counties’ weather stations, calculated and get the apple’ flowering frost damage probability of different levels of 5 apple plant counties’ weather stations and it’s regional automatic weather stations. According to the analyzing results of 100 historical disaster cases of apple, endowing 0.1, 0.3, 0.5 as mild, moderate, severe apple florescence frost damage’ loss coefficients. On the basis of the fundamental and model of climate hazard risk, the author calculated and get the apple’ flowering frost damage risk index of 5 apple plant counties’ weather stations and it’s regional automatic weather stations, and based on GIS system produced the apple flowering frost damage risk maps down-scaling of 5 apple plant counties.