Based on Haiyang's climatic data from 1961 to 2015 provided by Yantai Meteorological Bureau, such as daily air temperature,amount of precipitation,relative humidity and average wind speed,the authors of this paper analyzed the tourism climate resources of Haiyang city,using the methods of sliding average, linear trend estimation and climate comfortability evaluation,which involves temperature-humidity index(THI),wind-chill index(WCI),index of clothing(ICL)and comprehensive comfort index(CCI). The result showed that total annual precipitation of Haiyang averaged 746.6 mm,the relative humidity 69.4%,and average annual temperature was 12.0℃.Maximum rainfall,averaging 192.1 mm,occurred in August.Maximum relative humidity(86.1%)and temperature(25.0℃)occurred in July and maximum wind speed in April.Minimum precipitation,relative humidity,temperature and wind speed appeared in January,March,January and March,respectively.In the past 55 years,the number of days with a cold air temperature totaled 395,and the days with a high air temperature totaled 22,The days of gale totaled 382,which were mainly distributed in spring and winter.The annual average temperature and annual mean wind speed showed an upward trend by 0.343℃/10 aand 0.035 m/s/10 a,respectively.The annual precipitation and relative humidity declined by-33.455 mm/10 aand-1.059%/10 a,respectively. The climate change played a fundamental role in the development of tourism.THI increased by 0.538/10 a. However,WCI,ICL and CCI showed a download trend by-8.688/10 a,-0.026/10 a,and-0.169/10 a, respectively.The period suitable for traveling in Haiyang was shown to be from May to October,and May,June,September and October were the most comfortable months for tourists.The period from July to August was fairly suitable for outdoor tourist activities.April and November were not suitable for tourism,and the three winter months of December,January and February were most undesirable for tourism.