The subject innovation relates to a number of challenges (水道 栓) used in the sink, and more particularly, can be suitably used in the basin of 3 Hole, the installation is simple and reduce the manufacturing cost of the can is manufactured with expensive brass challenge before a number relates an improved three-hole sink only be provided with a fixing device so that, in the upper valve body 10, an internal valve chamber which is (2) and the faucet (4) is formed in the main body (1) ;, the valve body 10, the operation of operating handle (20) ;, the valve chamber (2) bottom part (5) and cold. hot water supply pipe and at the same time connected to the sink (30) (40) (s) on the main body (1) fixing means for fixing; Comprises the said body (1) has a valve chamber (2) configured to form a connecting screw hole (8) protruding in the center portion lower side in the bottom part of the formed connecting the threaded hole (8) and the upper end portion and such that the screw assembly each threaded portion 51 at the lower end (51 ') are formed fixing screw rod 50 and the fixing screw rod 50 and the coupling is screw rod insertion hole (61) in close contact with the fixture 60 and the connecting screw rod provided with a 50 and consists of a screw (51 ') and the lock nut 52 is screwed is formed at the bottom of the valve chamber (2), a cold water pipe connected to the threaded hole 6 and the hot water pipe connection formed on a lower surface of the main body (1) and I offer three holes can washbasin conductive configured punters 7 so that each combine a flexible cold water supply pipe 30 and the hot water supply pipe (40) screws on to to produce at low cost, the public also can be easily mounted on the sink to help.