Microelectromechanical module package structure with reduced noise interference

A MEMS module package includes a housing with an accommodation chamber and an opening in communication with the accommodation chamber. The housing has a substrate and an electrically insulative cap capped on the substrate and defining with the substrate the accommodation chamber therebetween. A micro electro-mechanical chip is installed on the substrate and located inside the accommodation chamber. The micro electro-mechanical chip has an action zone corresponding to the opening of the housing. A first conducting layer and a second conducting layer are respectively disposed on an inner surface and an outer surface of the electrically insulative cap.