The invention relates to a microwave strengthened leaching method of copper pyrites. The method comprises the following steps that (1), the copper pyrites with the particle diameters being less than 0.074 mm are evenly mixed with a leaching agent, and mixed pulp is obtained; and (2), the mixed pulp is subjected to microwave strengthened leaching treatment, and after leaching is finished, a leaching solution containing copper is obtained through filtering. According to the microwave strengthened leaching method of the copper pyrites, the requirements for raw ores of the copper pyrites are low, copper ores which are low in level and difficult to be smelted through a pyrometallurgical technique are subjected to leaching for copper extracting, and gas such as sulfur dioxide is not generated in the whole process, so that the environment-friendly effect is achieved; operation is simple and convenient, the production period is short, and the requirements for the device corrosion-resisting strength and the like are low; and in addition, through the microwave strengthened leaching method of the copper pyrites, the passivating phenomenon can be weakened, the leaching rate for copper is high, and good application prospects are achieved.