Test terminal plug for electrical operation and preparation method thereof

The invention discloses a test terminal plug for electrical operation, which comprises an insertion rod and an insertion handle, the insertion handle comprises a straight pipe, one end part of the insertion rod is inserted into the straight pipe, the end part of the straight pipe is vertically connected with one end of a vertical pipe, the middle part of the straight pipe is connected with the other end of the vertical pipe through a bent pipe, the test terminal plug also comprises an extension rod, and the end part of the extension rod penetrates through the vertical pipe and extends into the bent pipe. The preparation method comprises the following steps: mixing the diatomite inorganic filler, the plasticizer, the heat-conducting insulating material, the coloring agent, the lubricant, the antioxidant and the synthetic resin, preheating, adding into a graphite compression mold, heating and plasticizing, pressurizing, cooling, and removing burrs or flashes. The terminal plug can be well attached to a terminal