The invention discloses a reactive power voltage coordination control method adaptable to a clustered wind-solar-electricity access system. A power grid serves as the highest level control layer, a power grid level control station selects a reactive power optimization mode or voltage control mode according to weak sending end voltage, a cluster level serves as a second highest level control layer, corresponding model calculation is performed according to a superior control command, a control objective is proposed to an inferior station, a terminal serves as a control layer and also an executive layer, local control is performed and action of an inferior wind generation set or a photovoltaic module is selected according to the control objective proposed by a superior station, the wind generation set/photovoltaic module is an executive layer, and reactive power adjusting action is executed according to the superior control command. The outstanding problem of complicated reactive power voltage of the clustered wind-solar-electricity access system in the prior art is solved, full-network voltage safe and stable operation is realized, and wind-solar-electricity capacity is maximized as much as possible.