A semiconductor device package includes a first substrate, a second substrate, a first electronic component, a second electronic component and a shielding layer. The second substrate is disposed over the first substrate. The first electronic component is disposed between the first substrate and the second substrate. The second electronic component is disposed between the first substrate and the second substrate and adjacent to the second substrate than the first electronic component. The shielding element electrically connects the second electronic component to the second substrate. The second electronic component and the shielding element define a space accommodating the first electronic component.