Abstract: This study addresses the clean heating demands in rural Northeast China, systematically analyzing the technical characteristics, application performance, and economic and environmental benefits of five photovoltaic (PV)-assisted electricity-driven heating systems. Comprehensive comparisons were conducted on the working principles, real-world applications, economic viability, and carbon emissions of the following systems: PV-assisted air source heat pumps, PV-assisted ground source heat pumps, PV-PH combined with hot water storage tanks and electric kang(heated bed), PV-assisted thermal-storage electric boilers, and PV-assisted thermal-storage electric heaters. The results indicate significant variations among the systems in terms of initial investment, operating costs, and carbon emission intensity. Specifically, the PV-assisted thermal-storage electric heater exhibits the lowest initial investment. The PV-assisted air source heat pump demonstrates superior comprehensive performance for single-household and mall-to-medium-scale heating applications. The PV-PH combined with hot water storage tank and electric kangsystem is best suited for retrofitting dispersed farmhouses. The PV-assisted ground source heat pump is suitable for centralized heating in newly built residential clusters with significant long-term benefits. Lastly, the PV plus thermal-storage electric boiler system is appropriate for public buildings such as schools.