The invention discloses a demand response effect evaluation method by taking load limit as the goal. The method includes the following steps that firstly, demand response evaluation time is determined; secondly, three evaluation sub-goals are determined by taking load limit as the goal; thirdly, a demand response effect evaluation system by taking load limit as the goal is established according to the judgment standard whether the evaluation sub-goals are strongly correlated; fourthly, per-unit disposal is conducted on important evaluation indexes and auxiliary evaluation indexes, the percentage of each evaluation index is worked out, and the weighting method is adopted for unified solving to obtain an evaluated value. The evaluation method has comprehensiveness, independence, easy measurement, flexibility and practicability, needed data are obtained conveniently and are easy to understand, solving is conducted through the weight factor method, engineering application is facilitated, and the method plays a role in filling the blank in the aspects of demand response/orderly power utilization effect evaluation or demand response allowance standard formulation.