Abstract: Extracting rate of zinc, drinking nutrition and safety of Zn-enriched tea made by use of the bioenrichment of tea plantwere studied.The results showed that zinc extracting rate of the zn-enriched tea were from 47.1% to 51.1%. The extracting rateof zinc in tea was mainly depended on the tea process,but no relation with zinc content of tea.Zinc extracted from the first infusingwas 80% of total extractable zinc in twice infusing tea .People could intake zinc nutrition in 10%～15% of RDA by drinking ofthe Zn-enriched tea which would not result to excessive intake of zinc. Zn-enriched tea made by use of the bioenriching effect oftea plant accorded to the national sanitary criteron of tea and it was a good and safe drinking for supplement of zinc nutrition.

Key words: zinc-enriched tea, extracting rate of zinc, sanitary criteron, drinking safety