At present,the trend of global warming is becoming more and more obvious,the probability of extreme weather and the intensity are rising. Many extreme weathers have influenced the development of coastal areas. Taking Hebei Qinhuangdao port as an example and by using the comprehensive drought index,EMD decomposition, regression analysis and other methods,characteristics of extreme weather disasters in Qinhuangdao port and the influence of the disasters on port of anchorages are discussed. Research results show that: ①The frequency of drought in Qinhuangdao port area over the years is about 48%,spring drought occurrence frequency at about 45%, the four seasons spring drought occurrence frequency is the highest. In the recent 60 years,the drought duration and drought intensity of Qinhuangdao port area have obvious inter annual fluctuation,but the trend is not obvious. ②The annual precipitation in Qinhuangdao port area is generally smaller,and the average period is shorter and longer. The corresponding relationship between the rainstorm series and the annual precipitation series is better,and the quasi 6 year period is the main period of the rainstorm disaster in Qinhuangdao port area. ③The number of high temperature days,average annual precipitation and heavy rain days are the main factors influencing the cargo throughput of Qinhuangdao port,and it is negatively correlated with the throughput.