The invention provides a system for thermal power plant peak regulation through combination of cross-seasonal natural water heat storage with an electrode boiler. The system comprises a power plant wiring system, a cross-seasonal heat storage peak regulation system and a heating pipe network system; and the cross-seasonal heat storage peak regulation system comprises a cross-seasonal natural water system, a heat storage source system and a heat network water pipeline connecting system. With the thermal power heating unit operation flexibility technology and the electric boiler area heating technology, in combination with cross-seasonal natural water heat storage in summer, depth thermal power plant peak regulation in summer can be realized, so that the online peak regulation ability of a thermoelectric unit in summer can be remarkably increased, the dilemma of consumption of renewable energy sources can be effectively relieved, large-volume cross-seasonal heat storage of heating hot water can also be realized, and the system has the broad market development prospect in the future.