The invention discloses a power transmission tower emergency repairing method. The method comprises the following steps: acquiring input data in response to an emergency instruction; judging whether the input data satisfies standard data in a pre-constructed tower database, wherein the tower database comprises at least one standard tower and standard data corresponding to the standard tower; acquiring the standard tower as the conventional tower in the tower database if the input data satisfies the standard data in the pre-constructed tower database; or constructing the conventional tower according to the input data; when the emergency instruction is the basic emergency instruction, determining the standard basis according to the conventional tower; when the emergency instruction is the tower emergency instruction, generating a construction lofting graph of the tower according to the conventional tower; and generating a construction repairing plan according to the standard basis or theconstruction lofting graph. The invention further discloses a power transmission tower emergency repairing system. By adopting the method disclosed by the invention, the accident repairing can be quickly and efficiently accomplished, and the timeliness of the power supply is guaranteed.