With the rapid development of tourism, tourism revenue, as one of the important indicators to measure the development of the tourism economy, has high research value. The quasi-prediction of tourism revenue can drive the development of a series of related industries and accelerate the development of the domestic economy. When forecasting tourism income, it is necessary to examine the causal relationship between tourism income and local economic development. The traditional cointegration analysis method is to extract the promotion characteristics of tourism income to the local economy and construct a tourism income prediction model, but it cannot accurately describe the causal relationship between tourism income and local economic development and cannot accurately predict tourism income. We propose an optimized forecasting method of tourism revenue based on time series. This method first conducts a cointegration test on the time series data of the relationship between tourism income and local economic development, constructs a two-variable autoregressive model of tourism income and local economy, and uses the swarm intelligence method to test the causal relationship and the relationship between tourism income and local economic development, calculate the proportion of tourism industry, define the calculation result as the direct influence factor of tourism industry on the local economy, calculate the relevant effect of local tourism development and economic income, and construct tourism income optimization forecast model. The simulation results show that the model used can accurately predict tourism revenue.

With the development of the Internet and the strong support of national policies, network technology has been widely used in all fields, and the way of information release is not only faster but also more extensive. With the strong support of the state, network technology has been widely used in all areas of society, and the number of Internet users is also increasing, and rural homestay tourism is a new force in the development of rural tourism. Rural homestay tourism plays a unique role in rural employment increase, active industry, active environment, active culture, and other aspects, so more measures should be taken to promote the development of rural homestay tourism. Therefore, by combining the above two points, rural homestay tourism also needs to carry out practical changes. The combination of Internet and rural tourism marketing is a new marketing mode, which opens up a new way for rural tourism product marketing innovation. Due to the huge market demand and various policy support at the national level, the homestay industry has become a breakthrough point for local activation. The author conducted a survey on the situation of “Internet +” rural tourism, guided and analyzed the results, found out the problems existing in the Internet marketing of rural tourism products, and put forward the strategies to deal with the Internet marketing of rural tourism products.