An audio output mode adjustment structure that is applied to an electronic device with a handset mode, the audio output mode adjustment structure comprising: a sound output channel communicating an interior of the electronic device and an exterior of the electronic device and having an opening that is located at a top of the electronic device; and an adjustment unit that is configured to move relative to the opening of the sound output channel, wherein when the electronic device outputs audio in: a loud-speaking mode, the adjustment unit is configured to expose the sound output channel, and sound waves propagate in a straight line through the opening of the sound output channel, and the handset mode, the adjustment unit is configured to cover the opening of the sound output channel, and the sound waves propagate toward a display screen side of the electronic device through the opening of the sound output channel; wherein the adjusting unit further comprises an adjusting part and a connecting part connected with each other, and under an action of an external force, the connecting part is configured to drive the adjusting part to move relative to the opening of the sound output channel; wherein, when the electronic device outputs audio in: the loud-speaking mode, the adjusting part is configured to expose the opening of the sound output channel; the handset mode, the adjusting part is configured to cover the opening of the sound output channel; characterized in that: the adjusting part is rotationally connected with the connecting part, and when the electronic device outputs audio in the loud-speaking mode, the adjusting part and the connecting part are located at the interior of the electronic device and the adjusting part is configured to expose the opening of the sound output channel, and when the electronic device outputs audio in the handset mode, the connecting part is configured to drive the adjusting part to protrude to the exterior of the electronic device and the adjusting part is configured to flip relative to the connecting part to cover the opening of the sound output channel. a sound output channel communicating an interior of the electronic device and an exterior of the electronic device and having an opening that is located at a top of the electronic device; and an adjustment unit that is configured to move relative to the opening of the sound output channel, wherein when the electronic device outputs audio in: a loud-speaking mode, the adjustment unit is configured to expose the sound output channel, and sound waves propagate in a straight line through the opening of the sound output channel, and the handset mode, the adjustment unit is configured to cover the opening of the sound output channel, and the sound waves propagate toward a display screen side of the electronic device through the opening of the sound output channel; a loud-speaking mode, the adjustment unit is configured to expose the sound output channel, and sound waves propagate in a straight line through the opening of the sound output channel, and the handset mode, the adjustment unit is configured to cover the opening of the sound output channel, and the sound waves propagate toward a display screen side of the electronic device through the opening of the sound output channel; wherein the adjusting unit further comprises an adjusting part and a connecting part connected with each other, and under an action of an external force, the connecting part is configured to drive the adjusting part to move relative to the opening of the sound output channel; wherein, when the electronic device outputs audio in: the loud-speaking mode, the adjusting part is configured to expose the opening of the sound output channel; the handset mode, the adjusting part is configured to cover the opening of the sound output channel; the loud-speaking mode, the adjusting part is configured to expose the opening of the sound output channel; the handset mode, the adjusting part is configured to cover the opening of the sound output channel; characterized in that: the adjusting part is rotationally connected with the connecting part, and when the electronic device outputs audio in the loud-speaking mode, the adjusting part and the connecting part are located at the interior of the electronic device and the adjusting part is configured to expose the opening of the sound output channel, and when the electronic device outputs audio in the handset mode, the connecting part is configured to drive the adjusting part to protrude to the exterior of the electronic device and the adjusting part is configured to flip relative to the connecting part to cover the opening of the sound output channel. the adjusting part is rotationally connected with the connecting part, and when the electronic device outputs audio in the loud-speaking mode, the adjusting part and the connecting part are located at the interior of the electronic device and the adjusting part is configured to expose the opening of the sound output channel, and when the electronic device outputs audio in the handset mode, the connecting part is configured to drive the adjusting part to protrude to the exterior of the electronic device and the adjusting part is configured to flip relative to the connecting part to cover the opening of the sound output channel.