PURPOSE: To provide a manufacturing method, by which recessed and projecting parts and nonuniformity of thickness are not caused by an abrasive grain layer, deterioration of abrasive grain due to frame-spray heat can be prevented, and a metal bonded grinding wheel can be manufactured with high production efficiency.

CONSTITUTION: Metal coating layers 11, 12, 13 are formed on the outer periphery of an abrasive grain 10 to obtain a metal coating abrasive grain 14 having the average diameter 1.2-4 times as large as the average grain diameter of the abrasive grain 10. The metal coating abrasive grain 14 is heated to melt at least a part of the metal coating abrasive layers 11, 12, 13, and flame-sprayed to the abrasive grain layer forming surface of a grinding wheel substrate 23 to form an abrasive grain layer 24.