We have carried out point-contact spectroscopy (PCS) measurements on one family of antiferromagnetic Kondo semiconductor CeT2Al10 (T =Ru and Os) with a Néel temperature TN ～ 27.5 and 28.5 K,respectively.Their PCS conductance curves both exhibit a characteristic coherent double-peak-structure at temperatures below TN,signaling an AFM gap around the Fermi surface.The temperature dependent AFM gap △1 follows a Bardeen-Cooper-Schrieffer (BCS)-like mean-field behavior with a moderate gap anisotropy for PCS along different crystal axes.Another asymmetric gap-like feature is observed for both compounds at temperatures far below TN,which is consistent with opening of a new hybridization gap Ah inside the long-range ordered AFM state.Our results suggest a common itinerant nature of the anomalous AFM ordering,constraining theoretical models to explain the AFM origin in CeRu2Al10 and CeOs2Al10.