A pet grooming tool includes a tool body (10) extending longitudinally and having a transverse insert slot (13) and a latch displacing space (116) communicated with the insert slot (13), a latch member (21) displaceable in the latch displacing space (116) to insert a latch portion (212) into the insert slot (13) in a latch position so as to retain an insert plate portion (31) of a comb plate (30) in the insert slot (13), and to retreat into the latch displacing space (116) in an unlatch position so as to permit removal of the comb plate (30) from the tool body (10) for replacement.
