PURPOSE: To polish even such a component as being very light and fragile so efficient enough by sticking and fixing abrasive grains on an inner surface of a barrel polishing pot.

CONSTITUTION: Abrasive grains 4 are stuck to an inner surface of a barrel polishing pot drum 1 by means of a bonding agent 3. With this constitution, such barrel polishing as having used a barrel polishing pot whose inner surface is stuck with these abrasive grains is made performable, therefore even such a component as being very light and fragile is efficiently polishable. In addition, according to this method, it is O.K. 'd only when a workpiece is taken out and washed lightly after polishing is over, preparatory work and aftertreatment fall into disuse.