The invention relates to an evaluation method for insulating material performance for a converter transformer. The evaluation method for the insulating material performance for the converter transformer comprises the steps that general physical property data and dielectric property data of insulating materials on the converter transformer are obtained; the general physical property data and the dielectric property data are processed, and then a corresponding standard deviation is calculated according to the processed data; a weight column vector is obtained according to the standard deviation;and a value of the general physical property, a value of the dielectric property and a comprehensive value are obtained according to the weight column vector. According to the evaluation method for the insulating material performance for the converter transformer, the achievement of the technical effect of optimizing insulating material performance comprehensive evaluation is facilitated.