The utility model relates to an auxiliary lighting device of a universal meter, which is characterized in that clamping mechanisms are arranged at the lower end parts of the two sides of a frame, thetwo clamping mechanisms can clamp the two sides of the universal meter, an elbow is arranged on the frame, and a lighting lamp is arranged at the tail end of the elbow. According to the utility model,the structure is simple, clamping mechanisms are arranged at the lower ends of the two sides of the frame. Two sides of the universal meter can be clamped; a battery compartment and an elbow are arranged on the frame; a dry battery or a rechargeable battery is placed in the battery compartment; the power supply supplies power to the illuminating lamp; the illuminating lamp can adopt LED lamp beads with low power consumption; due to the fact that a plurality of electric power instruments are similar to a universal meter in size, the clamping mechanism can clamp the outer surface, the lightinglamp can provide lighting for observation and operation of the instruments, use of operators is facilitated, and the electric power instrument is low in cost, small in size and convenient to carry.