Introduction: Unbalanced distribution of resources and economic, social services between regions has been led to special development planning and create balance between regions. So this research has been done the objective such as determine of level of provinces development, investigating of development degree in deferent sections and prediction of effective factors in development of region.Method: the data has been collected from Last official census of population and housing in Iran at 1385. The method of research is Descriptive – analytic and has been used Statistical model such as Factor analysis, Multivariate regression.Findings: finding of research show that there isn’t balance between provinces of Iran. south khorasan, Razavi Khorasan, Mazandaran, Gilan, Semnan, Yazd, Isfahan, Qom, Tehran provinces are At the highest level of development and 8 provinces such as: Chahar Mahal Bakhtiari, Kermanshah, Lorestan, Khuzestan, Kerman and North Khorasan has been located in second level and Markazi, Bushehr, Hamadan, Fars, East Azerbaijan, Golestan, Ardabil, West Azerbaijan, Qazvin provinces has been located in third level and finally three provinces such as Ilam, Kurdistan and Sistan Baluchistan has located The lowest level of development.Result: according to results of Multivariate regression for developing of Iran provinces should be used from Healthy, physical, cultural, educational, institutional and economic factors for provinces mentioned above.