The invention relates to a multi-energy complementary energy internet optimized dispatching method. A multi-energy complementary energy internet comprises a cold/heat storage unit, a power storage unit, an electric output device, a cold output device, a heat output device and a load demand side. The method comprises the steps that under a set control strategy, minimal system operation and maintenance cost, environment-friendly cost and comprehensive benefit cost are taken as a multi-objective function, and the constraint conditions comprise power balance constraints, power generation output power limit constraint and energy storage battery operation constraint, solving is carried out through a genetic algorithm based on self-adaptive crossover variation operation, and load optimization distribution of all equipment is obtained. Compared with the prior art, the method has the advantages that the peak shaving valley filling of an external power grid is promoted, and the load pressure ofthe power grid is relieved, so that the local consumption capacity of new energy in the area is improved, and the cleaning and high efficiency is truly achieved.