An electronic package structure is provided which comprises a metal core PCB, an energy storage device and at least one electronic component. The at least one electronic component is disposed between the metal core PCB and the energy storage device. The metal core PCB defines at least a through hole. A thermal passage is disposed in the through hole. An insulating layer is disposed in the through hole and located between the metal layer of the metal core PCB and the thermal passage to prevent the electric coupling between the thermal passage and the metal layer. The energy storage device comprises at least a connecting pin in thermal contact with the thermal passage.