Utilizing the data of the monthly sunshine hours in Neijiang stations in 1960—1995, the change characteristics of the sunshine hours about recent fourty years in Neijiang municipality are analysed, and the sunshine average hours in the area is decreasing at the trend rate of —46.98 hours/10 years. This kind of tendency appears mainly in winter and Summer Meantime, it was pointed out that the sudden change of sunshine hours occured in Neijiang in 1980,and then there is a relative less hours period.