The invention provides a power distribution station area energy sharing method and device. The method comprises steps that power distribution station areas are interconnected by AC/DC/AC converters, according to the preset principle, operating states of the power distribution station areas are divided into four modes of A, B, C, and D, in the modes A and D, energy sharing is not performed in the power distribution station areas, and in the modes B and C, energy sharing is performed in the power distribution station areas according to a preset algorithm. The method is advantaged in that interconnection is realized through the AC/DC/AC converters in the power distribution station areas, clear thinking is achieved, the control method is simple and easy, only when electric energy inside a certain power distribution station area is excess, the excess electric energy is transferred to another power distribution station area to the maximum degree under the constraint that the electric energyis not excess in the another power distribution station area, the utilization rate of renewable energy can be effectively improved, moreover, a problem of operation of a relay protection device causedby feeding back of the excess electric energy to the higher power grid is solved.