The invention provides a high-temperature electrodialysis desalination method for saline. The saline is desalinated at high temperature. The high-temperature electrodialysis desalination method for the saline comprises the following steps: pumping the saline into an ultrafiltration pretreatment device by a centrifugal pump; pumping the pretreated saline into a jacket type electrical heating tank by the centrifugal pump and heating to the temperature of 60-80 DEG C; then delivering the saline to an adsorption tank with molecular sieves and standing for 4-6 hours; delivering the saline to the jacket type electrical heating tank and heating to the temperature of 60-80 DEG C, and then feeding into a concentration chamber of an electrodialysis device by the centrifugal pump; adding 0.05-0.1 mol/L of a hydrochloric acid solution in the concentration chamber; preparing a Na2SO4 solution with the concentration of 0.2-0.3 mol/L in the electrodialysis device; pumping the Na2SO4 solution into a pole compartment of the electrodialysis device by the centrifugal pump until conductivity of yielded water of an outlet of a desalinating chamber of the electrodialysis device is reduced to be 500-800 s/cm; and feeding water into a fresh water tank. By the high-temperature electrodialysis desalination method for the saline, ultrafiltration pretreatment and high-temperature electrodialysis are combined, high-salinity water can be desalinated effectively, limited current of electrodialysis is increased, polarization precipitates are reduced, and running cycle of the electrodialysis device is prolonged.