The invention discloses a multifunctional computer-control karaoke singing machine, which comprises a box body, a lifting handle, a loudspeaker, a refrigeration/cool air cabinet, a heating/hot air cabinet, a top cover, a panel, a multi-specification cell phone charger, an illumination lamp, an audio access interface, a storage battery, a municipal power socket, an inverter socket, an igniter, an mp3 output port, an mp4 output port, a display screen, an operation panel, a microphone, an mp4 connection line and an mp3 connection line; the microphone is connected with the mp3 and the mp4 output ports through the mp3 and the mp4 connection lines, the operation panel can operate the song and display the lyric and the video on the display screen, so the karaoke system can be integrated onto the microphone. The multifunctional computer-control karaoke singing machine integrates the display screen, the microphone and the sound box into a whole, and integrates the charging device, the socket, the cold/hot storage cabinets and the like, so the price is cheap, the machine is convenient to carry, and all functions of the machine can be conveniently used.