The invention provides a portable electric power trolley and belongs to the technical field of electric auxiliary equipment, comprising a vehicle frame, wherein a power supply box is arranged at the bottom of the vehicle frame, an uninterruptible power supply is arranged inside the power supply box, a power supply lead shaft is arranged outside the power supply box, a power supply wire is wound onthe power supply lead shaft, one end of the power supply wire is used for connecting with the input end of the uninterruptible power supply, and the other end of the power supply wire is used for connecting with alternating current. A plurality of tool boxes are arranged in the middle of the frame; A control panel is arranged on the top of the frame; Universal wheels are arranged at the bottom ofthe frame. The portable power supply trolley provided by the invention has the advantages that: Compared with the prior art, the portable power supply trolley of the invention is provided with an uninterruptible power supply and a plurality of tool boxes, which are convenient to carry, convenient to take and put the tool box for inspection and repair, and the lifting mechanism can solve the lineinspection and repair work of different heights, improve the work efficiency, and ensure the safety, fast and smooth progress of the inspection and repair work.