The invention discloses a wine bottle plug. The wine bottle plug comprises a bottle plug body; the bottle plug body is in a conical table shape with the downward sharp end; a first airbag layer is integrally arranged on the outer wall of the bottle plug body; a groove is formed in the center of the top end of the bottle plug body in a downwards concave mode, and the cross section of the groove isgradually increased from top to bottom; a communicating air pipe is arranged between the inner wall of the groove and the first airbag layer; an elastic blocking mechanism which can be exposed of or block the air pipe is arranged inside the groove; the top end of the bottle plug body is further provided with an air supply mechanism for conveying air to the groove; and the air supply mechanism is detachably arranged at the upper end of the bottle plug body. According to the wine bottle plug, the bottle plug and a bottle mouth can be rapidly sealed without heavy pressure of a machine, the bottleplug can be taken down from the bottle mouth rapidly without a tool like a bottle opener, operation is rapid and convenient, the bottle plug can be recycled, and the service life is long.