A reed tooth for a hosiery stitching machine, which includes a fixed reed, includes a positioning portion for positioning to the fixed reed, first and second sidewalls, and an intermediate wall cooperating with the first and second sidewalls to define a slide groove. The first sidewall has a tapered bottom end that includes a bottommost tip and an inclined edge. The second sidewall has a length shorter than that of the first side wall, and has a tapered bottom end that includes a bottommost end, and an inclined edge that extends upwardly from the bottommost end of the second sidewall. The inclined edge of the second sidewall and the inclined edge of the first sidewall cooperatively define a bottom opening of the slide groove.