A package structure of a micro speaker includes a substrate, a diaphragm, a coil, a carrier board, a lid, a first permanent magnetic element, and a second permanent magnetic element. The substrate has a hollow chamber. The diaphragm is suspended over the hollow chamber. The coil is embedded in the diaphragm. The carrier board is disposed on the bottom surface of the substrate. The first permanent magnetic element is disposed on the carrier board and in the hollow chamber. The lid is wrapped around the substrate and the diaphragm. The lid exposes a portion of the top surface of the diaphragm. The second permanent magnetic element is disposed either above the lid or under the lid.