Sink

The utility model discloses a sink comprising a panel, wherein the panel is shaped like a cuboid; an annular through groove is formed in the panel; the annular through groove comprises an inner side surface; the panel is connected with a basin body adapted to the annular through groove; the basin body comprises a basin bottom and an annular surface; a water outlet is formed in the basin bottom and is located in the center of the basin bottom; the basin bottom comprises a first arc-shaped drainage surface, a second arc-shaped drainage surface, a third arc-shaped drainage surface and a fourth arc-shaped drainage surface; the intersection point of the first arc-shaped drainage surface, the second arc-shaped drainage surface, the third arc-shaped drainage surface and the fourth arc-shaped drainage surface is superposed with the center of the basin bottom; and the annular surface comprises a first vortex surface, a second vortex surface, a vortex surface and a fourth vortex surface. The sink is simple in structure and strong in practicability.