The invention discloses a method for configuring power distribution reactive and comprehensive control strategies and the optimal capacity. The method includes steps of A, automatically controlling voltage reactive optimal combinations; B, configuring and computing the power distribution reactive control optimal capacity. The method has the advantages that difficulty in voltage reactive control on current power distribution networks is comprehensively considered by the aid of the method, accordingly, the power distribution voltage and reactive and comprehensive control strategies and the reactive optimal capacity of the power distribution networks can be configured, and the power supply ability of the power distribution networks can be improved.