Abstract: This study deals with a model developed based on fuzzy logic for the optimization of Tank Irrigation system. In this study, using MATLAB, reservoir operation is simulated considering the mass balance and continuity in inflows during successive months. The model developed can serve as an efficient tool for operation of the tank for effective decision making to meet irrigation requirements. This model is proved to be better than the traditional approach models surely shown to increase the actual irrigation potential and reduce the gap with the achievable irrigation potential resulting in improved water management. This fuzzy logic model is better for extraction of knowledge from historical data for deriving optimal operational policies for reservoir systems and tanks with the available data and knowledge.