A semiconductor package includes a semiconductor die, a first thermal conductive pattern and a second thermal conductive pattern. The semiconductor die is encapsulated by an encapsulant. The first thermal conductive pattern is disposed aside the semiconductor die in the encapsulant. The second thermal conductive pattern is disposed over the semiconductor die, wherein the first thermal conductive pattern is thermally coupled to the semiconductor die through the second thermal conductive pattern and electrically insulated from the semiconductor die.