Abstract: The paper aims to find out the dominant components of 13 wild tea plants in Mangshan tea region for large quantity of cultivation and propagation according to the breeding objectives, and lay a foundation for breeding new varieties of tea plants with strong adaptability. By observing the phenotypic characters of the 13 samples and using UV spectrophotometer method, automatic amino acid analyzer and high performance liquid chromatography (HPLC), we determined the contents of water extracts, soluble sugar, free amino acids, tea polyphenols and catechins. The results showed that: the 13 samples contained high water extract, high soluble sugar, high tea polyphenol, low amino acid and low phenol ammonia ratio. It is speculated that one of the resources is expected to be suitable for black tea and four for green tea, especially MS- 9 tea has high polyphenols and theanine which could be a special and high quality resource for the extraction of tea polyphenols and theanine.