The main purpose of this study was to investigate of economic impacts of Soleimanshah dam on rural development in regions that are under influence of irrigation and drainage network of dam. In this research quantitative-qualitative research method was used and information gathered with questionnaire, interview, and direct observation. Statistical population of research in qualitative part consisted of managers of rural governance organizations which are under influence of irrigation and drainage network of dam (N=48) that totally interviewed, also Statistical population in quantitative part consisted of villagers householders downstream villages of dam (1273) that 300 people was selected base on Kerjski and Morgan table by using stratified sampling method with proportional allocation. For data analysis Moris model in quantitative part and content analysis and mind mapping techniques in qualitative part were used. Findings showed that positive and negative economic impacts of Soleimanshah dam totally summarized in 7 topics: 1) To cause economic competitions in local areas; 2) Enhancement and development of economic at under influence rural arias; 3) Attract of city founds by rural areas; 4) Increase agricultural land worth in studied areas; 5) Establishment of welfare activities; 6) Leads to food security, 7) Weak of local economy in upside areas of dam. Results of qualitative part and utilization of Morris model showed that in field of economic Impacts, the village which has more potential and Infrastructure for development(such as Satar) has got better rank and they were enjoyed from the economic indicators that related to establish of dam.