The invention relates to a rapid emulsion breaking method, including microwave radiation. Emulsion breaker is added according to the water content of the rolly oil (calculated by weight percent), the mass ratio of the water and emulsion breaker is 1:0.5*10-4 to 5*10-4, and microwave is adopted for emulsion breaking. The emulsion breaker is one or more than two types of mixtures of polyamine polyoxy-propylene polyoxyethylene ether, resin polyoxy-propylene polyoxyethylene ether, higher-alcohol initiator emulsion breaker or propylene glvcol emulsion breaker. The microwave radiation and microwave radiation frequency are 2450MHz or 915MHz. Under the synergistic reaction, water-in-oil emulsion liquid is broken within a relatively short period, a bigger anhydration rate is achieved, and the emulsion-breaking efficiency is improved. In the circumstance of a little emulsion breaker, microwave radiation breaking method can be adopted, and the emulsion breaking speed is increased by 1-2 orders of magnitude compared with the traditional emulsion breaking by heating. The method is easy to implement, energy efficient, rapid in emulsion breaking, and the emulsion breaking effect is good.