Land value is one of the important bas is for Land Adminstration and Land Tax. It plays a important role in Land Policy owing to social, economic, environmental change. Currently. Geographic Information System (GIS) is a newly developed technique and has been applied in many industrial and science appliaction in past few year.Because GIS has the strong capability to process and analyse spatial data, it can be used to create a Land Appraise Assiatant System. The main aim of this study is that applys GIS to create a usable and widely_considered Land Appraise System. It maybe can refine current land appraisial work that is used in manual method in our Land Adminstration Unit.