Abstract: The regional difference degree of tourism economy in Yunnan from 2008 to 2019 is analyzed and decomposed by taking the total tourism income (100 million yuan) of Yunnan and 16 prefectures and cities as the important analysis index by using the statistical methods of mean value, standard deviation, coefficient of variation and Theil index analysis according to the four regions(central, northeastern, southwestern and northwestern Yunnan). The causes of the differences are empirically analyzed and the coordination countermeasures are put forward by using the grey correlation analysis model and principal component analysis method.

Key words: tourism economy, regional differences, Theil index, grey correlation analysis, principal component analysis