To exhibit a high performance over a long period without an ultra-fine abrasive grain layer being peeled from a base even under a sever condition of high-speed feed and deep cutting by providing a brazing material layer in the boundary between the base and the ultra-fine abrasive grain layer.

The whole body of a base 1 is washed, and integrated into a molding die, and a mixture obtained by mixing a diamond abrasive grain to a resin bond mainly composed of a phenolic resin so as to have a concentration degree of 100 is filled therein. The die is then pressurized with heating to fix a resin bond ultra-fine abrasive grain layer 2 on the surface of the brazing material layer 3 of a cemented carbide base 1 simultaneously with the formation. After cooling, the molding completed product is taken out from the die, and the circumference and side surface of the ultra-fine abrasive grain layer 2 are tooled and dressed to manufacture a resin bond diamond cutting wheel.