The invention discloses a fast location method for a demand response resource based on a resource mask. Serial numbers are distributed to initial address data of the demand response resource, the target address of the demand response resource is input, searching and locating are conducted in a processed full path compressed tree data structure, the demand response resource can be quickly searchedand located, the execution time of a demand response project can be reduced, the demand response order issuing thus takes less time, the order issuing time and execution time of the demand response project are shortened, the demand response capacity is more precise, the method can help a power scheduling center to quickly schedule the demand response resource, scheduling of the demand response project is effectively optimized, maximization of benefits is achieved, and the method has good economic value.