Tourism is a pillar industry in Linzhi, Tibet, and it is of great significance to predict the Linzhi tourism market. Based on the data of 2009-2016 tourism reception in Linzhi city, using the grey system theory GM (1,1) model , the tourism market in future five years of Linzhi city was predicted in this paper. The significance of the model was tested by residual test, relevatce degree test and back-check test, the results showed that the GM (1,1) model has higher precision, it is reasonable to predict. The forecast results showed that the Linzhi tourism market will continue to grow steadily in the next five years.