Abstract: Based on field experiments, the study aimed to analyze the effect of special water soluble fertilizers with different proprietary formula on soil pH, soil organic matter, total nitrogen content, urease, invertase enzymes activities and tea quality indicators, and to clarify the mutual relationship between the index of soil enzymes and the tea quality, in contrast to that without fertilization. The results showed that the amino acids and tea polyphenols content were significantly and positively correlated with the soil urease and invertase enzymes activities, respectively. The mode of‘micro-sprinkler irrigation plus special water soluble fertilizers’can reduce soil pH, increase the soil capacity to supply nutrient, improve soil enzymes activities and tea quality, which can provide theoretical basis for cultivation in young tea plant in the north.