The experiment was conducted to study the influence of salinity change on spores, germinating spores and discs of Gloiopeltis tenax. Gloiopeltis tenax spores released at salinity 31 were incubated in six salinity gradients（16，21，26，31，36，39）for 30d respectively. The germinating spores (which were Gloiopeltis tenax spores that have adhered at salinity 31 for one day ) and the discs (which were Gloiopeltis tenax spores that have adhered and been incubated at salinity 31 for five days) were put into five salinity gradients（10，16，31，52，57）to culture for 20d respectively. The result was following. Optimum salinity of attachment, development and survival for Gloiopeltis tenax spores was recorded at 26-36. For the germinating spores of Gloiopeltis tenax, optimum salinity range of development was recorded at 16-31 while appropriate salinity range of survival was recorded at 16-52. For the discs of Gloiopeltis tenax, optimum salinity range of development was recorded at 10-31 while appropriate salinity range of survival was recorded at 10-57. The experiment result showed different development stage of Gloiopeltis tenax spores had different adaptability to the salinity change. Results presented in this study were expected to assist the progress of artificial seeding and propagation of Gloiopeltis tenax.