Under the consideration of ¡§avoiding the overusing the ground water¡¨, ¡§proper planning for the utilization of the land in the land-subsidence areas¡¨, and ¡§facilitating the exploitation of surface water and substitute water¡¨, we take eight counties included in the ground-water-constrained areas in Kaohsiung as illustrations to discuss the issue of optimal planning for matching the land-use and the demand of water resource. Compared with the traditional Linear Programming, Fuzzy Linear Programming has received a great deal of attention in the recent years for its strength on working out results more fitting in with the uncertainty faced while making decisions in practice, and we adopt this model to solve the problem in this study. By separately following the Zimmermann¡¦s Symmetric Model, Werners¡¦s Symmetric Model and combining model of Delgado¡¦s Model and Flexible Programming, we show that setting 2006 as the target year, our models can properly describe linguistic objective and vague constraints after taking the uncertainty of the result into account and work out the optimal-alterative-based planning.