Effects of vulcanizing temperature and time on the physico-mechanical properties of wet-gel and dry-film of vulcanized natural latex were studied．The physico-mechanical properties of wet-gel became worse when the temperature or the degree of vulcanization was increased．The properties of dry-film were improved by increasing the degree of vulcanization and became worse on increasing the vulcanizing temperature(while the combined sulphur is constant)．The differences in these properties between the wet-gel and dry-film were attributed to the difference in the mechanism of rupture，e.g.，inter-globule for wet-gel and intraglobule for dry-film．The effect of vulcanizing temperature was explained by the non-uniform distribution of the intraglobule sulphur-bond．in the latex．