Abstract: In order to protect and improve the quality of cultivated land of tea garden and guide the farmer to conduct the fertilization scientifically and reasonably, the author collected representative tea garden soil for laboratory testing, the results of the test were summarized and analyzed, fertility status of tea garden soil in Anxi County were evaluated according to the test results of 186 soil samples. The results showed that tea garden soil had a serious acidification tendency in Anxi; soil nutrient was imbalanced and potassium, magnesium and boron were serious deficient. Therefore, the popularization of soil testing formula fertilization technology should be strengthened to balance soil nutrient; the protection of cultivated land quality of tea garden should be highlighted, ecological tea garden should be developed and organic fertilizer should be applied to improve soil fertility.