An electronic device is provided, including a first module, a second module, and a protecting member. The first module includes a side surface and a fixed member, wherein the fixed member includes a protrusion protruding from the side surface. The second module includes a recess. The protecting member encompasses the protrusion and includes a first surface, a second surface, and an elastic portion, wherein the first surface is opposite to the second surface. The elastic portion protrudes from the first surface. When the protrusion is joined to the recess, the second surface and the elastic portion contact an inner wall of the recess.