The key measure for the effects of tourism-based poverty alleviation in towns with ethnic characteristics is whether the integrated development mechanism of tourism has been established or not. Focusing on the construction of an integrated synergetic development mechanism of tourism,the paper analyzes the conditions and obstacles for tourism-based poverty alleviation and the integrated development in the two trans-provincial towns with ethnic characteristics in Wuling Mountain Area,Hong’an Town of Xiushan County in Chongqing City and Chadong Town of Huayuan County in Hunan province. On this basis,the author discusses the related problems of tourism-based poverty alleviation and the integrated development in the two towns,and constructs an integrated mechanism of tourism development and tourism-based poverty alleviation from four aspects,thus providing a reference for the integrated development of tourism-based poverty alleviation in such towns in cross-border areas.