The present invention discloses a multi-reactive power source interaction-based wind farm/group reactive power voltage real-time control method. The method includes the following steps that: the operation control parameters of a large-scale wind power centralized access area power grid are obtained; wind power cluster points in the area power grid and the reactive power voltage sensitivity coefficient matrix of wind farm access points are calculated; the real-time reactive power compensation capability of a plurality of reactive power sources in the area power grid is calculated; small-amplitude voltage fluctuation is stabilized through using a dynamic reactive power compensation device; a wind farm group reactive power voltage optimal control model considering multi-reactive power source interaction is constructed, a multi-reactive power source coordinated control scheme obtained through solving the model is adopted to stabilize large-amplitude voltage fluctuation. Therefore, a multi-reactive power source interaction effect can be considered, and the voltage interaction of wind farms/groups can be further stabilized, and the acceptance capacity of the power grid for wind power can be further improved with the safety of the power grid ensured.