The difference of aging tolerance and the heatstable proteins were among 10 kenaf(Hibiscus cannabinus L.)cultivars,though aging treatment of kenaf.The results indicated that,(1)Seed gemmation and vigor index of 10 kenaf varieties reduced with the extent time in the process of aging,while there were notable difference in 10 kenaf varieties;(2)The content of heatstable protein gradually increased with aging treatment deepening,SDS-PAGE eletrophoresis showed that a 62.8kD heatstable protein appeared only in liao 55 in 140h aging treatment，there were no differences in others.Liao 55 was the most antiaging variety during aging treatment in 10 kenaf varieties,these results suggested that the special heatstable proteins might be related to aging tolerance.