Chaharmahal and Bakhtiari Province is one of the 31 provinces of Iran and located on the southwestern part of the country. Its capital is Shahrekord. It has an area of 16,332 square kilometers and a population of 857,910. To study of human development used the Surplus Biocappacity (SB) and Human Development Index (HDI). This research accrued in the shahr-e-kord, Boroojen, Farsan, Ardal, Lordegan and Kohrang region (chaharmehal va Bakhtiari Province). our research used the raw data in related the Surplus Biocappacity (SB) and Human Development Index (HDI) include number of death, student in the primary, guidance, high school, tertiary and number of Adult Literacy in the calendar of 2010 year. Results showed that the quantity of human development index and sub- index in the shahr-e-kord was higher the other region of chaharmehal va Bakhtiari Province, but this index in the Kohrang region was lowest quantity. because the the quantity of family income, level of education and life Expectancy index in this region are lowest in the chaharmehal va Bakhtiari Province. Other region of province arranged the Boroojen (17%), Lordegan (17%), Farsan (13%) and Ardal (12%) have a maximum of effect on the human development. Overall results showed that the shahr-e-kord (center of chaharmehal va Bakhtiari Province) has a maximum of human development, and Kohrang region have a minimum of human development. Authors suggested increasing the human development of Kohrang region more focused in this region and determinate the more financial resource and managements.