The utility model relates to the technical field of power system measurement. More specifically, the present utility model relates to a method for manufacturing, the utility model relates to a novel 10kV KYN switch cabinet handcart loop resistance measurement auxiliary tool. The switch comprises an auxiliary contact and a handle. wherein the handle comprises an operating part and a connecting part; wherein the operating parts are arranged at the two ends of the connecting part, the connecting part is provided with a clamping block, the auxiliary contact comprises a main body and a protruding tail part, the protruding tail part is provided with an insertion hole matched with the connecting part, the insertion hole is provided with a square hole matched with the clamping block, and the innerwall of the insertion hole is provided with an annular groove matched with the clamping block in size. Therefore, a problem that the traditional detection result of the loop resistance at the plum blossom contact of the switch cabinet handcart can not truly reflect the contact operation resistance of the moving contact and the static contact during the operation process can be well solved.