The utility model discloses a high-salinity industrial wastewater treatment process system. The high-salinity industrial wastewater treatment process system comprises a raw water regulating tank, a mechanical accelerated clarifier, a clear water tank, a multi-media filter, a weak acid cation bed, a softening water tank, a self-cleaning filter, an ultrafiltration device, an ultrafiltration water discharging tank, a first-stage RO security filter, a first-stage RO device, a concentrated water tank, a second-stage RO security filter, a second-stage RO device, a third-stage RO device, a pre-desalting water tank, a lime device, a FeCl3 device, a PAM device, a MgO style device, a sodium carbonate device, a HCl device, a NaOH device, a scale inhibitor device and a reducing agent device. In order to ensure the long-term stable operation of the process system, the high-salinity industrial wastewater treatment process system also comprises a cleaning system, a chemical dosing storage system, a compressed air system, a wastewater neutralization system, an electrical system and an instrument control system which are relative and matched. When the high-salinity industrial wastewater treatment process system disclosed by the utility model is used, the whole system operates all the time at a high pH value, and the RO devices can be effectively prevented from being blocked; meanwhile, the regenerative characteristic of weak acid cation resin is utilized, and the investment and operating expense are saved.