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 . <EOS>