Abstract:This paper deals with a new species of the genus Sinopasma Gauntter from Hainan Province, China. Holotype is deposited in the insect collections of Beijing Forestry University and paratype is deposited in Beijing Agritutural University.Sinophasma conicum sp. nov. (fig. 1)This new species is allied to Sinophasma mirabile Gunther, but it differs from the latter in:1. Posterior margin of subgenital plate without rod-like prominence;2. The base of Cercus distinctly swelled ;3. Posterior margin of anal segment concavus slightly.Body 44.0mm; pronotum 2.2mm; mesonotum 9.4mm; fore femur 12.4mm;middle femur 8.0mm; hind femur 13.0mm; 7th abdominal tergite 1.8mm; 8th abdominal tergite 2.4mm; anal segment 1.4mm.Female: unknown.Holotype , paratype 1, Jianfengling, Hainan Province, Dec. 14, 1974,collected by Li Fasheng.