The utility model discloses a dental handpiece accessory case which comprises a case body and a case cover, wherein a rectangular box body with an opening in the top end is arranged on the upper side of the case body; a drawer body is arranged on the lower side of the case body; a first bottle body, a second bottle body, ball bottles, rectangular grids, circular grids, first triangular grids, second triangular grids, a strip-type grid, a strip-type block, partitions extending in the width direction of the box body and a column body extending in the vertical direction of the box body, wherein strip-type division regions are formed in the drawer body; the partitions are arranged in the division regions and are used for dividing a main grid for placing a dental handpiece and auxiliary grids for placing dental handpiece accessories. The dental handpiece accessory case provided by the utility model can meet storing requirements of dental handpieces with different types, sizes and specifications as well as the storing requirements of the accessories of the dental handpieces.