Two types of pseudotachylytes are observed in the Dahezhen ductile shear zone of the Tongbei-Dabie oro-genic belt, southwest Henan Province of China, one associated with the cataclasite cuts the foliation of mylonite and the other is interlayered and associated with the mylonite. The occurrences and microstructures suggest that the former type formed in the brittle regime (<15 km), and the latter was generated in the semi-ductile regime (15-25 km). Both pseudotachylytes display textures attesting of a melting origin: microlites, rounded and embayed clast, flow structures and glassy matrix. The coeval presence of the two types of pseudotachylytes indicates that cyclic seismic slips occurred in the same shear zone from brittle to semi-ductile regimes in the Tongbei-Dabie collisional erogenic belt.