Abstract: The present disclosure discloses a saline wastewater treatment system using solar-assisted heat pump. A method of solar thermal collector coupled with a heat pump can treat saline wastewater at low carbon and high efficiency, and industrial salt and fresh water can be obtained by concentration. The system includes a wastewater pretreatment system, a wastewater heating system, and a wastewater evaporation and concentration treatment system. The wastewater pretreatment system is connected to the wastewater heating system; and the wastewater heating system is connected to the wastewater evaporation and concentration treatment system.