The invention discloses a testing method for echelon recycling and utilization of decommissioning batteries, which belongs to the technical field of echelon recycling of lithium batteries. The method comprises the following steps: through the echelon recycling and utilization of a battery, measuring the alternating current internal resistance and collecting the battery's factory-set information including the initial alternating current internal resistance of the battery; according to a normal charging process, measuring and obtaining the power capacity of echelon recycling and utilization; performing capacity sorting based on the measured data; and in the discharge process, utilizing pulsed discharge method to obtain the internal resistance value; and based on the measured data, performing alternating current internal resistance sorting. The method of the invention is capable of rapidly and effectively dividing the echelon recycling and utilization battery into different levels, increasing their consistency as a group and maximizing the residual battery value.