The invention relates to a new process for recovery of salt-containing wastewater. By subjecting the salt-containing wastewater to pH adjustment, and by making use of a novel combined membrane separation technology combining filtering pretreatment, electrodialysis and reverse osmosis under an appropriate temperature condition, the salt-containing wastewater can be recovered and utilized as valuable high concentration wastewater and qualified pure water. By adopting the method provided in the invention, low-cost, high efficiency separation and sufficient utilization of the salt-containing wastewater can be realized.