Abstract: Based on the climate data and apple yield data in Yantai area from 1996 to 2016, the relationship between apple yield and different climatic factors at different growth stages in Yantai area is studied by using the exponential smoothing method and Deng's grey correlation analysis model. The results show that, of the many natural factors, wind speed is the primary influence on each growth stage of Yantai apple, following by air temperature. However, sunshine duration is the least important factor. Precipitation has little effect on the climatic yield of apple in the tufting stage, however, in other growth periods, the influence is only lower than wind speed and temperature. The percentage of sunshine and relative humidity has a great effect on the climatic yield of apple in the puffing-fruit stage, but little effect in other growth stages. Under the background of global climate change, therefore, to improve the yield and quality of Yantai apple, it is urgently need to strengthen the forecast and early warning of meteorological disasters in all growth stages, and take the corresponding management and defense measures in a targeted way, such as wind prevention measures, water conservancy and irrigation facilities and pest prevention measures. Through these measures, the fruit farmer economic loss can drop to the lowest point.