Abstract: In a conventional computer mouse integrated with a massager, it is necessary to hold the mouse by a hand when massaging the other body positions than a palm. A massager integrated type optical computer mouse is structured such that a bottom surface portion of the optical computer mouse is formed so as to be depressed as a concave shape to a main body side, a massaging vibrator is arranged in a protruding manner at the concavely depressed position, and any one of operational switches of the computer mouse is changed to a switch for turning on or off a power supply to the massaging vibrator, and changing a vibration pattern, by a selection switch. Accordingly, an operator can bring the concavely depressed position of the computer mouse into close contact with an approximately convex body position so as to massage while gripping the computer mouse by a palm.