The utility model relate to a multifunctional screwdriver comprising a screwdriver handle. The rear end portion of the screwdriver handle is provided with a groove with a backward opening, the opening of the groove is provided with an end cap in a sealed mode, a rotary shaft in rotary connection with the end cap is arranged in the groove, the rotary shaft penetrates through the end cap, the extending end of the rotary shaft is connected with a rotary shaft power drive mechanism, the groove wall of the groove is provided with a strip-shaped through hole, an insulating tape is wound on the rotary shaft, the free end of the insulating tape penetrates through the strip-shaped through hole and extends to the outside of the groove, and the outward extending end of the insulating tape is connected with a tape fixing block. The rotary shaft power drive mechanism is a manual rotary wheel fixedly connected with the outward extending end of the rotary shaft. The rotary shaft power drive mechanism comprises a buckle cover buckled on the end cap and holding the outward extending end of the rotary shaft. A coil spring is disposed between the inner wall of the buckle cover and the outward extending end of the rotary shaft. The multifunctional screwdriver has the advantages of being multiple in function, simple in structure, and convenient to carry and use.