Due to the potentials and social, economic and environmental considerations land suitability analysis is the most important geographical issues in spatial planning plans. The lack of an integrated approach and the uncertainty in these problems has led the inherent conflicts associated with land suitability analysis. Currently, land suitability analysis in spatial planning plans is done without taking conflicts over land suitability during modeling.  The purpose of this study is development a spatial decision support system (SDSS) appropriate with spatial planning requirements in Kohgiluyeh and Boyer-Ahmad based on LUCIS model. The present study focuses on three major kinds of land uses include agriculture, natural resources and urban with an integrated vision.  The spatial model used in this research is (LUCIS). In this study, Demand and concerns of stakeholders will be operational with the development and deployment of a spatial decision support system (SDSS). In this context, multi-criteria decision making (MCDM) analysis will be used. The Result of this system is a spatial system that automatically performs land use modeling accordance with the views of decision-makers based on LUCIS model. Land use conflicts will be identified as well as in the present system.