The invention discloses an intelligent power transformer which comprises a transformer shell, an intelligent explosion relief valve, a valve element, an electric leakage detecting device, an oil pump, cooling fans, a high-pressure pipe casing and an oil leakage detecting device. A breather is arranged on the upper left portion of the transformer shell, and an expansion tank is arranged at the right side of the breather. The oil leakage detecting device is mounted in the expansion tank, a heat conducting plate is arranged at the right side of an oil pipe, and the cooling fans are mounted on the right side of the heat conducting plate. The intelligent explosion relief valve, the electric leakage detecting device, the oil pump, the cooling fans, an alarm device, the oil leakage detecting device and an oil level indicator are all electrically connected with a wireless receiving and sending device. The intelligent power transformer is scientific and reasonable in structure and safe and convenient to operate, the intelligent explosion relief valve can be automatically switched on when an oil tank has an accident, oil in a machine body is drained out, and heat can be discharged through the heat conducting plate. The wireless receiving and sending device is beneficial to remote wireless control, and intelligent management can be achieved.