: One of the most important subjects in crop production is to optimise yield while minimizing inputs. Precision Agriculture could obtain efficient use of inputs such as seed, fertilizer, pesticide etc. as respect to environment by considering the spatial and temporal changes in field according to crop and soil properties. This new method is an approach which can provide with the new technologies using in agriculture. Remote sensing, Geographic Information Systems, and Global Positioning Systems may provide the technologic solutions for farmers requirments to maximize the economic and environmental benefits of precision agriculture. In this study, Precision Agriculture Technologies were investigated under literature informations and using areas of these technologies was determined in irrigation.