Instrument heat preservation device for electrical test and using method thereof

The invention discloses an instrument heat preservation device for an electrical test and a using method thereof, and belongs to the technical field of electrical test auxiliary devices. The instrument heat preservation device comprises a heat preservation cover body which is internally provided with a temperature control assembly; an operation window and a key window are arranged on the side, facing a worker, of the heat preservation cover body, the key window is tightly attached to an operation panel of the temperature control assembly, an electric wire through hole is further formed in theheat preservation cover body, and flexible glue transparent sealing materials are pasted to the inner wall of the operation window and the inner wall of the electric wire through hole; the temperaturecontrol assembly comprises a temperature control box body, a heating device, a temperature displayer, a control module and a temperature collector are arranged in the temperature control box body, the heating device, the temp