The invention provides a large power grid disturbance propagation characteristic evaluation method. According to the method, energy conveying evolution characteristics and disturbance track large power grid disturbance propagation characteristics are combined for evaluation; firstly, according to the transient total energy change characteristics after the fault, the disturbance propagation process after the fault is divided into a transient energy injection stage, a transient energy conservation stage and a transient energy step-by-step attenuation stage; then, an evaluation object is determined according to the transient energy change characteristics in each stage; a time-domain simulation method is used for simulation calculation; in addition, relevant items of the transient energy are selected from the simulation result in different stages, and are defined as an observation index; influence factors for generating the disturbance are judged; an influence factor set is generated, so that the key factors for influencing the transient energy propagation are obtained; the evaluation of the large power grid disturbance propagation characteristics is realized.