The invention relates to an automatic display apparatus for temperature contact conduction of a transformer. The automatic display apparatus is characterized in that the apparatus comprises contacts for connection with contact terminal of a temperature gauge of a transformer, a buzzer, an indication lamp, a power supply and a switch, wherein the buzzer, the indication lamp, the power supply and the switch are connected with the contacts in series. With the automatic display apparatus, a testing worker can carry out operation conveniently; and accuracy of the measuring data can be ensured. And problems that multiple testing workers are needed, the operation time is long and the personal error is large during the existing measuring process can be solved.