Abstract:Abstract: In order to carry out the collection，conservation and evaluation of the germplasm resources of C.sinensis cv.gulin-niupicha,8 representative tea plants ( Class-Ⅰ to Class-Ⅷ ) were selected from the germplasm resources of C.sinensis cv.gulin-niupicha. We observed and determined their botanical features and biological characteristics and biochemical composition. The results showed that those accessions had the rich diversity in morphological characters, genetic and quality traits. Most tea plants belong to shrub with semi-erect tree pose, have green Shoots with moderate pubescence, elliptic Leaves with its apex acuminate, middle sized flower with style of 3-4 cracks, spherical and reniform fruit with spherical seed. Most of them show cultivated tea characters. To different types of the tea plants are rich of biochemical compositions in the spring, polyphenol content arranges at 19.71%±0.39%~30.16%±0.22%, free amino acids arranges at 2.20±0.11%~4.88±0.12%, caffeine content arranges at 3.45%±0.17%~4.41%±0.09%. According to the contents of major biochemical components and polyphenol/amino acids ratio and catechin components etc, It can be deduced that Class-Ⅴ and Class-Ⅵ were appropriate system of black tea, other classes are suitable for green tea. It is preliminarily concluded that they belong to C. gymnogyna Chang and C. sinensis var. sinensis in classification systems respectively by the morphological and biochemical composition characteristics of tea plant, Class-Ⅴ and Class-Ⅵ are more original, other classes are the evoulution of relatively high levels.. There are some resources with breeding value in the germplasm resources of C.sinensis cv.gulin-niupicha. Class-Ⅴ and Class-Ⅵ are preliminary determined as resources of high catechins and high ester catechins .Class-II is determined as breeding material selection of high quality Green Tea varieties.