Abstract: The paper evaluated and analyzed the ecological environmental quality (EEQ) from the tourism point of view. Firstly, it chose ten index of evaluating EEQ from some aspects including climate, air, noise control, park and green area, traffic, city appearance, environment maintenance and so on, for the first time taking climate as a index of EEQ. Secondly, it built synthesis index of EEQ by use of principle component analysis. Then, it evaluated the EEQ of 31 provincial cities of mainland China. In the end, it analyzed the relationship between EEQ and tourist number. Three main conclusions are educed. There is a great difference between the EEQ of different cities; there is a great difference between the different respects of EEQ in the same city; there is a significant relationship between the tourism number and climate, park and green area.