To polish a spherical work with high sphericity using a general-purpose surface polishing machine without introducing a V polishing machine.

A fixture 31, which is mounted with a V-abrasive disk 33, having V-grooves 34 formed on its circumference, attached on the bottom surface of a guide ring 32, is mounted on an abrasive disk 11 of a general-purpose surface polishing machine, with its movement regulated in the circumference direction. A peripheral speed difference acting upon by rotating the abrasive disk 11 rotates the V-abrasive disk 33. A plurality of works 16 are disposed at the V-grooves 34 on the V-abrasive disk 33, and an upper abrasive disk 15 is mounted on the tops of the workpieces 16. The workpieces 16 are supported at three points, thereby conducting polishing with high sphericity.