The paper deals with an application of FUZZY-AHP (Analytic Hierarchy Process) that is the extension of the fuzzy technique and applied to find out the relative weights of the ecological criteria in landscape evaluationfor crop development. For this purpose, the evaluation process including the data input mcluding ecological requirement of crop and landscape map linking with landscape property matrix
FUZZY-AHP interacted with GIS
and the data output that are evaluation results matrix linking with landscape evaluation maps. A case study of Co Noi commune which covers 94.98 square kilometers of extent IS divided in to 20 landscape types and 39 landscape forms. The results of FUZZY-AHP model application in landscape evaluation for argicultural crops of mango and tungoil tree, indicated that there are 2,601 hectares suitable for mango, and 1,575 hectares for tungoil tree over this area. These study results show that FUZZY-AHP model has advantages for evaluating landscape suitability as an objective and great accuracy method.