Purpose/Significance Seasonality is an important factor affecting the development of tourist destinations.It is of reference significance to discuss the seasonal spatial and temporal distribution and influencing factors of 5A tourist scenic spots in China for the seasonal regulation and operation optimization of tourist scenic spots.

Method/Process Taking 209 5A tourist scenic spots in China as research samples, this paper reveals the seasonal spatial and temporal variation characteristics of 5A tourist scenic spots in China and the influencing factors on supply sidebased on the monthly online attention in 2016 and other relevant data, using monthly index, seasonal intensity index, Gini coefficient and regression model.

Result/Conclusion The results show that: 1) China's 5A tourist scenic spots' seasonality could be divided into four types: none peak, singlepeak, doublepeaks and multiplepeaks according to monthly index of 5A tourist scenic spots'online attention and fluctuant features.2) China's 31 provincial tourist destinations could be divided into four types: strong seasonality, sub-strong seasonality, sub-weak seasonality and weak seasonality according to mean value of provincial 5A tourist scenic spots' seasonal intensity index.3)The discovery of influencing factors on supply-side show:climate conditions have positive effect ontourism seasonality ofscenic spots.One unit latitude higher of the scenic spot, the seasonal strength would increase by 0.395 units.Attraction types have negative effect on seasonal intensity, wherethe seasonality of natural scenic spotsis much stronger than that of cultural scenic spots. Economic development also has negative effect on seasonal intensity.When the per capita GDP increases one unit, the seasonality intensity of the spot would reduce 0.178 units.However, the construction of the spot has none effect on tourism seasonality.