Multi-criteria decision making represents an interest area of research since most real-life problems have a set of conflict objectives. In this paper technique was used in distribution electric network, considering to important criteria we arranged possible options to get better result in summation, then depending on one selected residential area comparing different alternative we succeed to choose best alternative for repositioning of distribution substation which suggested 16set of substation by average of37.5 kva capacity to fulfil the requirements of all attributes in this definit situation , this result can be use in any other location by the same characteristics. This is a proven technique of decision making in electric engineering in combination the basic of power electric knowledge and fuzzy logic system.