The invention belongs to a silica gel suction disk, a preparation method and a multifunctional tuner using the silica gel suction disk. The multifunctional tuner comprises a tuner main body, wherein the silica gel suction disk is arranged on one side of the tuner main body; a clamping seat is arranged at the bottom of the tuner main body; the tuner main body comprises a shell, a tone display screen and tuning keys which are arranged on the front surface of the shell; a plurality of pick-up heads are arranged at the top of the shell; a USB interface is formed in the other side of the shell; a clamping seat interface is fixedly mounted at the bottom of the shell; the clamping seat interface is connected with the clamping seat through a connector; a storage box with a storage cover and a hinge interface are arranged on the rear surface of the shell; the hinge interface is connected with the silica gel suction disk through a flexible connection rod. The multifunctional tuner has the advantages of simple structure, reasonable design, convenience in mounting and carrying, quickness in dismounting and capability of realizing two fixing modes.