The invention discloses a medical instrument storage cabinet which comprises a shell, wherein a box is fixedly connected with the bottom of the shell; a supporting plate is fixedly connected with therear surface of the box; a motor is fixedly connected with the top of the supporting plate; an output shaft of the motor penetrates into an inner chamber of the motor and is fixedly connected with aneccentric wheel; a moveable plate is in rotatable connection with the top of the eccentric wheel. According to the invention, the first motor, the eccentric wheel, the moveable plate, the first connecting rod, the first slide block, the first slide slot, the first moveable block, the second slide block, the second slide block, the moveable rod, the second moveable block, the second connecting rod,the moveable splint and the fixed splint are arranged for fixing the positions of the medical instruments, so that the problem of damage to the medical instruments caused by accident shaking can be prevented, the unnecessary economic loss of the hospital can be avoided, the service life of the medical instruments can be prolonged, the normal use of the medical instruments is guaranteed and the working efficiency of the medical personnel is increased.