The invention discloses a PDC bit arranging method. the method comprises the steps of obtaining the thickness of each cutting tooth; performing cutting test to obtain the abrasion degree of each cutting tooth; obtaining the adjustment coefficient of each cutting tooth based on the abrasion degree of each cutting tooth; obtaining the correction thickness of each cutting tooth based on the adjustment coefficient of each cutting tooth and the cutting tooth thickness, and arranging the PDC bit based on the correction thickness of each cutting tooth. By the aid of the method, abrasion losses of the cutting teeth on all PDC blades during abrasion are analyzed, the cutting teeth largest in abrasion losses are found through a statistic analysis method to perform reinforcement, and accordingly, drill bit weak spots are reinforced, and the drill bit service life is prolonged.