This study aimed to investigate the possible antinociceptive action of the ethanolic extract (E.EtOH) and ethyl acetate fraction (F.AcOEt) from leaves of Parkia platycephala in streptozotocin (STZ)-induced diabetic rats. In chronic experiment, STZ-rats were daily treated with E.EtOH (150 or 300 mg/kg, p.o) for three weeks. The mechanical nociceptive threshold (MNT) was determined by application of von Frey filaments to the right hind paw before and 1, 2 and 3 weeks after diabetes induction. The STZ-E.EtOH 300 mg/kg group presented MNT higher than that in the STZ-vehicle group (untreated diabetic rats) at the third week. This effect was similar to the STZ-insulin group (6 U/rat/day), but did not reach the value of the control group (non-diabetic rats). Although, E.EtOH 150 mg/kg had induced a decrease on serum glucose when compared with initial glucose, there was no significant difference between STZ-vehicle and E.EtOH-treated diabetic rats. In acute experiments, untreated diabetic rats received F.AcOEt (6.25, 12.5, 50 and 150 mg/kg, p.o) at the third week of diabetes. F.AcOEt improved the tactile allodynia evaluated by MNT. Moreover, STZ-F.AcOEt 50 mg/kg presented antinociceptive effect in the late phase of formalin test. These findings indicate that E.EtOH and F.AcOEt showed analgesic actions in diabetic rats. Key words : Parkia platycephala, diabetic neuropathy, tactile allodynia, formalin test, analgesic action.