Among membrane separation processes, electrodialysis (ED) has been recognized with many application in water sweetening, recovery and removal of metals cations which make the study of ED membranes useful. Generally ion exchange membranes are devided into two types of homogeneous and heterogeneous, where Heterogeneous ion exchange membranes have better mechanical strength. In current research, heterogeneous membranes are fabricated and characterized. Synthetic membranes are made by dispersing of ion exchange resin and polyvinylpyrolydone(PVP) in polyethersulfone (PES) in different ratio. For performance analysis, ion exchange capacity (IEC), water uptake, chemical stability in oxidant, electrical potential and ion permeability of membranes have been evaluated. Controllable factors are percent of total amount of polymers, PVP to PES ratio, resin to polymer ratio and drying temperature. In order to cover all the factors and responses simultaneously, 16 samples of membrane are made based on Taguchi design experiment method. According to resultant responses, IEC is increased when resin particles and drying temperature are raised. Water uptake show growth by adding more PVP, resin and also total polymers into solution of casting. It show major values in higher drying temperatures. Also resin and PVP content in membranes have indirect relation by oxidation stability. Electrical potential show growth by increasing amount of resin and drying temperature. Potential is increased in Higher PVP to PES ratio firstly and then is decreased by increasing this ratio. In permeability of ions test, in addition to effectiveness of all factors, each has direct relation by permeability. SEM images show resin distribution in polymers and probable small cracks. In IEC and potential test, maximum reachable results among fabricated membranes are 1.52 meq/g membrane and 46.6 mV orderly. The best membrane in test of water uptake is swelled 23%. The sample with the least oxidation, lost 25.2% of its weight in oxidant solution. In permeability evaluation, the best result is for a membrane with 1.33 m/s. Optimum conditions of membranes with better performance than current ones, are specified separately by software for every test. Keywords: Electrodialysis, ion exchange membrane, Taguchi method, Polymer binder