Based on Chaozhou meteorological data including sunshine hours,total cloud amount,precipitation,surface vapor pressure,mean temperature,mean wind velocity and relative humidity from meteorological stations during 1969—2011,the characteristics and influencing factors of evaporation change in Chaozhou were studied with the methods of evaporation anomaly percentage,accumulative anomalies,Mann-kendall test,and wavelet analysis.The result indicates that the evaporation of 1970s and 1980s in Chaozhou were the most for the period of 1969—2011,while the evaporation of 1990s was the least.Seasonal fluctuation was obvious in evaporation change.Mutation test shows that the sunshine hours increased rapidly in 1970s,yet without obvious mutation.According to the period analysis of annual and seasonal evaporation changes,the evaporation now is relatively high in the more significant time scale.The decrease of annual evaporation is closely related with the increase of mean temperature,and may also be related with the increase of sunshine hours in summer.