High-efficiency maintenance trolley for switch cabinet

A high-efficiency maintenance trolley for a switch cabinet relates to auxiliary equipment for maintenance of the switch cabinet. Comprising an instrument placing table, a trolley frame body and a plurality of rubber rollers, the rubber rollers are movably arranged at the bottom of the trolley frame body, and the trolley frame body is moved through the rubber rollers; the trolley frame body is provided with the grounding pole, so that wires can be integrated and arranged, the experimental instrument is ensured to be in a grounding state at any time by connecting the grounding pole, and the matters such as forgetting to move an insulation pad in work are not needed to be worried. And a plurality of grounding columns are arranged, and besides grounding, some articles can be hung on the rest of the grounding columns. And the instrument placing table is arranged at the top of the trolley frame body through a connecting mechanism and is used for placing a loop resistance tester and a switch action characteristic te