In this paper has been studied factors influencing on investment in soil conservation practices by using Tobit model and a cross sectional data of 50 farmer in 1383 year. Results showed that age, family size, sloping land to total land ratio, awareness index of farmers to soil erosion problems and awareness index to soil conservation effects have positive effect and experience of farmers, education and share of cropping of total revenue has negative effect on investment in soil conservation. With respect to results of this study, payment of subsidy credit for soil conservation (green subsidy), attention to local knowledge of farmers and directing to extension training for creating of awareness about soil conservation effects as suggestion has introduced.