Abstract: An oral cavity cleaning device, which comprises a body, a water jet tip, a first motor, a second motor, a brush, and a water suction assembly. A rotating shaft extends out of an upper end surface of the body. The first motor drives the rotating shaft to vibrate to drive the brush to vibrate. The upper end surface of the body further comprises a water outlet, and the water jet tip is disposed on the upper end surface of the body and is in communication with the water outlet. Further, the water jet tip is disposed on a side of the brush facing a user, and the water jet tip is disposed below bristles of the brush. The second motor drives the water suction assembly to pump water from a built-in or external container, and water from a water passage disposed in the body sprays out of the water outlet and the water jet tip.