Tourists environmental protection behavior has great influence on the destination environment. It has been the major task which need to be efficiently resolved to find the key influencing factors, and turn the tourists environmental concepts into the conscious behavior choice. Based on qualitative research method of grounded theory, this paper makes open coding, axial coding and selective coding of depth interview material in order to build the theoretical model of the influencing factors of tourists environmental protection behavior. The result shows that tourists biography characteristics, tourists psychological factors, tourists emotional factors to the scenic area, tourists habits factors, social factors, and situational factors have significant influence on tourists environmental protection behavior. "Practice thrift at home but be amply provided while traveling" is the paradox of thrift in Chinese traditional culture, is found to affect tourists environmental behavior. The theoretical models not only are the extension of the planned behavior theory and the responsible environmental behavior theory, but also confirm the interpersonal behavior theory.