The present invention relates to a notebook computer, comprising a computer main body and a screen movably connected to the computer main body. A cavity and an expansion card press mechanism is provided inside the computer main body. A popup box is further provided on one side of the computer main body. The expansion card press mechanism comprises press blocks capable of moving forward and backward in an installation direction of an expansion card. The press blocks press the expansion card. The cavity is provided with an opening which is disposed at a position on an end face of the computer main body. The popup box is movably connected to the computer main body and provided with an antenna.