In order to extend the plucking period of spring tea and improve its yield, the shading cultivation experiment was carried out. Three treatments with different shading rates and shading heights were applied as 60% shading rate with shading height of 2.0m（T1）, 40% shading rate with shading height of 2.0m（T2）, 40% shading rate with shading height of 2.5m（T3）and none-shading（CK）. The experiment period was divided into early, middle and late stages from final harvesting period. The differences of temperature, relative humidity, growth status and tea quality among all treatments were analyzed. Compared with CK, the results showed that after shading, maximum daily air temperature around canopy was decreased significantly with the maximum temperature drop of 3.85℃ and average minimum relative humidity around canopy was increased with the maximum increase of 9.01% from 08:00 to 17:00;the new twig length and the stem thickness of T1 were increased by 22.3% and 13.5%, respectively;as shading rate was increased, relative chlorophyll content（SPAD）and water content of leaves and buds were increased;the average photosynthetic rate of leaves of T1 was increased, while those of T2 and T3 were decreased;as for T3, water extract, polyphenols and the ratio of polyphenols to amino acid were increased, but amino acid was decreased, leading to the tea tasted thicker and bitter;as for T1, its caffeine was increased, while water extract and the ratio of polyphenols to amino acid were decreased significantly during the early stage. Therefore, shading cultivation with shading rate of 60% was of significance to maintain the quality of spring tea, extend the plucking period and increase yield during final harvesting period.