The determined model by AHP method for optimize utilization in marginal land can be effective  for sustainable development in agriculture and renewable resource. The aim of this study determine of suitable model for sustainable utilization in marginal land according to present using. This study performed in Sarfirouze Abad rangelands in Kermanshah province (47°06'-47°12'E and 34°15'-34°25'N). It has the highest elevation watershed in Iran at 1450 m above sea level. The climate is a temperate semi-arid one with an average annual precipitation of 350 mm, a mean annual temperature of 12°C and slope 12%. The textures of the dominant soils are mostly loamy-clay. The factors were measured such as; soil erosion, canopy cover, ran off, biomass, diversity, macro and micro elements, wild life, landscape, seed bank and so on. The dignity of measured factors determined that soil erosion, canopy cover, run off, Biomass, diversity, organic matter and seed bank are importance respectively compared to other factors in sustainable development in marginal lands. By this dignity of factors and multiple with measured factors in field, then determine an SU Index. This index introduce area to danger of non sustainable utilization. Range of this index is 0≤SU≤1. If  number of this index near to 1 that means utilization is good and trend going to sustainable, converse, if number of this index near to 0 that means utilization is not good and there is threat of non sustainable utilization in marginal lands.