Abstract: Dye would be accompanied by the production of certain components of salt. The presence of these salts would affect the use of dyes and dyes performance of the original character. So dye production would be part of desalination. Dye desalination is the primary means of salt out and nanofiltration, the desalination of these methods are different. This paper describes the dye desalination methods. The dye desalination was studied with electrodialysis method. The effects of dye desalination such as the dye concentration, the different salt concentration in dye, current, pH and flow were studied. The results show that different dye concentrations was the little effect on desalination, different salinity and currents were also little effect on desalination. Because dye has a certain degree of resistance, so to set a high current is no practical significance. If the current is set too small, there will be a constant current process in the beginning of the desalination process. In the course of experiments, current changes from the beginning of more than 3 A until unchanged. Changes of pH and flow change only the desalination initial rate, affect not the final result of desalination.