Taking the total tourism revenue of Henan Province as the research subject, selecting the total tourism revenue data from 2005 to 2018 as the research sample, and basing on the GM(1,1) model, revising by Markov theory and the idea of equal dimension innovation, establish the equal-dimension new information gray Markov model. The results show that the gray Markov model with equal dimensions and new information which can be used to predict total tourism revenue, has a higher prediction accuracy than the traditional GM(1,1) model and gray Markov model, reaching up to 94.735%, which can provide reference for relevant government department policy-making.