Abstract: A crocodyliform specimen collected from the Late Jurassic Shangshaximiao Formation, Zigong, Sichuan Basin, China comprises a nearly complete skull, mandibles, most vertebrae, partial pectoral and pelvic girdles, most forelimbs and osteoderms. It represents a new species of Hsisosuchus, H. chowi sp. nov. Diagnostic features of the new species include a shallow longitudinal depression between nasals; a ridge along orbital margm of frontal; a faint ridge along suture between frontals; a distinct ridge along medial margin of supratemporal fossa; an anteromedian process of parietal wedging between posterior processes of frontals; ventral margin of jugal distinctly waved in lateral view; postorbital having an angular anterolateral comer; posterolateral process of squamosal extraordinarily elongated and extending outwards, downwards and backwards, leading to lateral margin of squamosal distinctly arched medially; exoccipital not contacting its opposite on occipital condyle; a ventral median ridge of pterygoid originated from main body of pterygoid; and choana positioned anteriorly. The discovery of H. chowi increases not only the distribution but also the understanding of the specialized hsisosuchids.