Although one of the biggest disadvantages of an economic evaluation, is volatility of price and instability of economic conditions, But for land use planning, economic considerations play a key role in land use and making decision. Cost is an important factor that encourage farmers to grow special crop. Thus, in addition to the qualitative and quantitative evaluation, Land Suitability can be based on net or gross profit per unit area of land to be assessed in economic terms. The economic evaluation is based on net income or gross income from the land. The purpose of this study was to assess the economic evaluation for part of Saadat Shahr (Kamin region) for Mung bean (Vigna radiata). 8 drilled profiles in order to see the profiles were chosen and after collecting data on real output, the variable cost of producing the product and the critical values and estimated gross profit are calculated and land suitability classes were determined. The results showed that one unit has a moderate suitability (S2) and two units have suitable classes (S1) from separate units.