A filling tap, comprising a valve body (1). A wine intake passage (5) and an air intake passage (3) are provided in the valve body. The lower end of the valve body is provided with a straight cylindrical butt joint part (14) a port of which faces downwards. An exhaust joint (2) is fixed in the axial direction in the butt joint part. A wine outlet passage (15) is formed between the outer peripheral surface of the exhaust joint and the inner peripheral surface of the butt joint part. The wine intake passage communicates with the wine outlet passage. The air intake passage communicates with an inner hole (22) of the exhaust joint. The filling tap can reduce liquor residue, thus preventing liquor from being contaminated during the next use, and ensuring liquor quality.