A reed tooth (10) for a hosiery stitching machine (100), which includes a fixed reed (110), includes a positioning portion (11) for positioning to the fixed reed (110), first and second sidewalls (13, 14), and an intermediate wall (15) cooperating with the first and second sidewalls (13, 14) to define a slide groove (16). The first sidewall (13) has a tapered bottom end (121) that includes a bottommost tip (122) and an inclined edge (123). The second sidewall (14) has a length shorter than that of the first sidewall (13), and has a tapered bottom end (140) that includes a bottommost end (141), and an inclined edge (142) that extends upwardly from the bottommost end (141) of the second sidewall (14). The inclined edge (142) of the second sidewall (14) and the inclined edge (123) of the first sidewall (13) cooperatively define a bottom opening (163) of the slide groove (16).