The invention discloses a wind power coupling balanced power generating method and system assisted by heat energy wind generation. The method is characterized in that a constant pressure overflow control manner is used in a combined wind power turbine, the stable rotation speed of a power generator is maintained through a liquid coupling, redundant mechanical energy in the combined wind power turbine is dissipated into heat energy which is stored in an energy storage water tank, and the heat energy can be used when wind power in a vertical air flue cannot sufficiently maintain the stable rotating speed of the power generator. The system comprises a chimney, the combined wind power turbine, the liquid coupling, the energy storage water tank and a heat pipe assembly, wherein the chimney comprises an air outlet section, a diffusion pipe, the vertical air flue and an air inlet section which are sequentially connected from top to bottom, the combined wind power turbine is arranged in the vertical air flue, the energy storage water tank is arranged on the periphery of the vertical air flue, and the heat pipe assembly is connected between the energy storage water tank and the diffusion pipe; and the output end of the combined wind power turbine is connected with the liquid coupling, and the output end of the liquid coupling is connected with the power generator. According to the wind power coupling balanced power generating method and system, energy stored by the system is used for adjustment and utilization, the production cost is reduced, and power generation is balanced.