Abstract: The evaluation index system of hot springs resort sustainable development can be divided into five subsystems: exploitation degree, development degree, brace degree, coordination degree, guarantee degree, Composed of 10 characteristic indexes and 50 evaluation factors. By applying AHP to determine the weight of indexes, establishing a kind of hierarchy evaluation model and setting evaluation standard, the paper took 46 hot spring resorts of Guangdong to evaluate comprehensively. The results show that the sustainable development condition of 46 hot spring resorts has a larger difference. The three hot spring resorts, as Bishuiwan, Haiquanwan and Global Villa, are in the stage of basic sustainable development. The 27 hot spring resorts including Jinyezi, Senbola and Wanggu are in the stage of Potential sustainable development. The other 16 hot spring resorts including Jinshuitai, Qianjiang and Haibin hotel are in the stage of Potential unsustainable development. But the trend of the hot spring resorts sustainable development is on the rise.