Tourism industry, considering its great number of benefits for societies from the most remote villages to big cities, has attracted the attention of politicians and planners. A major issue of tourism infrastructure is the balance between the number of tourists and the existing infrastructure. Therefore, this study, which is a descriptive-analytical, applied research, attempts to prioritize and determine the degree of development of Kermanshah province in terms of enjoying tourism infrastructure. Archival and field methods have been used in data collection. In conducting the research 18 indices relevant to tourism infrastructure have been used. In addition, in order to give substance to research indices, the experts' questionnaires (30 experts specializing in tourism) have been used. In order to prioritize towns of the province, the synthetic technique (TOPSIS and AHP) has been used and in order to measure the development of the towns, cluster analysis has been adopted. Also, GIS software has been used to show the levels of development. The research findings show that the three towns of Qasre Shirin, Paveh and Kermanshah, having the respective priority coefficients of 0.583, 0.569 and 0.512, fall into the first, second and third rank respectively. And the three towns of Babajani, Dalahoo and Harsin, having the priority coefficients of 0.198, 0.279 and 0.279, occupy the lowest ranks in terms of enjoying tourism infrastructure. In sum, in terms of development of the tourism infrastructure, about 21 percent of the towns of Kermanshah province are on very rich and rich levels, 36 percent are on fairly rich level, and 43 percent are on poor and very poor levels.