The market prospect and boom loop cycle of ecological tourism development in Sichuan province were predicted by using equal-weighted and coincident diffusion index method. The results show that:(1) Though Sichuan province ecological tourism had experienced a short low valley period in 2008, but it was keeping a continuous growing trend on the whole;(2) from 2007 to 2012, the ecological tourism industry in Sichuan province had experienced a cycle of "boom → recession → boom → recession → boom". The conclusion is that in the short term...