The invention discloses a welding repairing evaluation method which is an evaluation method for new welding joints formed by repairing of original welding joints. According to the welding evaluation method, a practical scheme can be provided for repairing of the welding joints; hidden dangers cause by repairing to the product quality can be avoided to a greater extent; the welding repairing evaluation method is suitable for welding repairing process evaluation of multiple materials; the efficiency is high, evaluating of all regions is not required, only the weak parts are required to be detected, the welding quality of the whole repaired welding joints can be ensured; a dividing method of heat influence regions is practical and effective, and effective reference bases are provided for quality detecting of the welding joints; and the application range is wide, and the repaired welding joints of materials which is very sensible to heat influence can be effectively evaluated.