Biochemical composition and diversity analysis of 98 tea germplasms originating from Guangxi were conducted. The results showed that the biochemical diversity and variation were high in Guangxi tea germplasms. The average diversity index and coefficient of variation were 1.90 and 25.8%, respectively. In principal component analysis, the first seven principal components represented 86.75% of the biochemical diversity. Based on the biochemical data, 98 germplasms were clustered into 3 groups. The germplasms in the first group suited to be processed green and black tea. The germplasms in the second group suited to be processed black tea. The germplasms in the third group suited to be processed green tea. A set of special germplasms on some biochemical composition were selected.