The invention discloses a method for evaluating a qualified degree of direct-current resistance of a turn-adjusting arc suppression coil. The method comprises the following steps of: obtaining a direct-current resistance vector of the turn-adjusting arc suppression coil; judging whether the direct-current resistance under each tap position meets related standards or not; obtaining a compensation current vector of the turn-adjusting arc suppression coil; carrying out natural logarithm transformation on the current vector and the direct-current resistance vector; calculating variances, covariances and correlation coefficients of the transformed current vector and the transformed direct-current resistance vector; and calculating the qualification degree of the direct-current resistance of theturn-adjusting arc suppression coil and carrying out grading quantification. According to the method disclosed by the invention, the difference between the direct-current resistance test value and the delivery value of the turn-adjusting arc suppression coil at each gear is considered; and the internal relation between the direct-current resistance and the compensation current under different gears is considered, the evaluation method is feasible and easy to operate, and can evaluate the direct-current resistance condition of the turn-adjusting arc suppression coil more accurately, comprehensively and effectively.