The present invention relates to sink ball fastener, more particularly, to improve the assembling workability of the operator by fixed installation the ball more easily with maintaining airtightness between the artificial marble and a ball forming the top plate of the sink while still producing a high quality sink It relates to a sink fixture so you can see. Sink the ball in this fixture is designed to improve the workability of sikimeuro secure the sink to see very easily by inserting a wedge attached to the support bar with the sphere tightly maintain the confidentiality of artificial marble sink tops and balls that make the worker. Furthermore, the simple and rapid dissolution is possible for the top plate and the inner surface of the ball out of the wedge attached to the support bar sphere sinks maintenance of the sink can be made more conveniently effect.