Abstract:akeing the data from 1997 to 2016 as the sample, this paper uses multiple linear regression model to analyze the five main factors affecting China's domestic tourism income level.The conclusion shows that the number of domestic tourists and travel agencies is the main factors affecting domestic tourism income.When other factors remain unchanged, the domestic tourism income will increase by an average of 1.218 billion yuan for the increase of every one million domestic tourists.For each additional travel agency, domestic tourism income will decrease by 47 million yuan on average.In this regard, the government should implement the leading tourism development strategy, promote the upgrading of tourism market structure, and develop relevant tourism industry system.