An electronic device, comprising: a middle frame; a housing assembly, comprising a battery cover, wherein the battery cover is arranged on the middle frame; and a printed circuit board, located between the battery cover and the middle frame, wherein the battery cover also functions as a printed circuit board support; the battery cover comprises an exterior portion, and the exterior portion comprises an external face and a structural face facing away from the external face; the battery cover further comprises at least one fixing portion, and the fixing portion is located on a side of the structural face facing away from the external face; and/or the battery cover further comprises at least one bearing portion, the bearing portion is located on the side of the structural face facing away from the external face, the bearing portion comprises a bearing sub-portion and a connecting sub-portion, the connecting sub-portion is connected between the structural face and the bearing sub-portion, and an extending direction of the connecting sub-portion is different from an extending direction of the bearing sub-portion, so that a bearing groove is formed among the structural face, the bearing sub-portion, and the connecting sub-portion, the electronic device further comprising at least one fixing structure configured to fix the battery cover and the printed circuit board, wherein the fixing structure comprises a screw, and the screw comprises a screw cap and a rod portion; a threaded hole is arranged on the battery cover; and the rod portion of the screw extends through the threaded hole on the battery cover to fix the battery cover to the printed circuit board. a middle frame; a housing assembly, comprising a battery cover, wherein the battery cover is arranged on the middle frame; and a printed circuit board, located between the battery cover and the middle frame, wherein the battery cover also functions as a printed circuit board support; the battery cover comprises an exterior portion, and the exterior portion comprises an external face and a structural face facing away from the external face; the battery cover further comprises at least one fixing portion, and the fixing portion is located on a side of the structural face facing away from the external face; and/or the battery cover further comprises at least one bearing portion, the bearing portion is located on the side of the structural face facing away from the external face, the bearing portion comprises a bearing sub-portion and a connecting sub-portion, the connecting sub-portion is connected between the structural face and the bearing sub-portion, and an extending direction of the connecting sub-portion is different from an extending direction of the bearing sub-portion, so that a bearing groove is formed among the structural face, the bearing sub-portion, and the connecting sub-portion, the electronic device further comprising at least one fixing structure configured to fix the battery cover and the printed circuit board, wherein the fixing structure comprises a screw, and the screw comprises a screw cap and a rod portion; a threaded hole is arranged on the battery cover; and the rod portion of the screw extends through the threaded hole on the battery cover to fix the battery cover to the printed circuit board.