Conduct research on the soil nutrient status and fertility quality of contiguous tea plantations in Ya"an, providing a scientific basis for improving soil quality in tea gardens. A total of 75 soil samples were collected from representative tea gardens across five districts in Ya"an. Nine soil indicators were analyzed to evaluate the nutrient status, and the Integrated Fertility Index (IFI) was calculated to comprehensively assess the soil fertility quality of Ya"an tea gardens. The soil pH ranged from 4.0 to 4.9 in Ya"an tea gardens, with 29.3% of the tea garden soils meeting the Grade I and III standards. In Mingshan, 50% of the soil samples showed severe acidification. The organic matter, total nitrogen, total phosphorus, total potassium, alkali-hydrolyzed nitrogen, available phosphorus, and available potassium in the soil of Ya"an tea gardens all met the Grade I standard. However, the cation exchange capacity (CEC) was relatively low, meeting only the Level III standard. In Lushan, total phosphorus, available phosphorus and 57% of the available potassium content meet the Grade III standard, indicating phosphorus and potassium deficiencies in the soil. The average IFI value for Ya"an tea gardens soils was 0.65, with 44% of the sampling points meeting the Level I standard. Sampling points in Yingjing, Mingshan, and Yucheng showed relatively high IFI values, while the average IFI value in Lushan County was at the Class IV level, indicating poor fertility quality. The contents of AN、TN and OM were identified as significant factors influencing soil fertility quality. The primary limiting factors were soil CEC, TP, TK and AK.SThe overall nutrient status of the tea gardens soil in Ya"an is good, and the soil fertility quality in yingjing was high; However, the soil fertility in Lushan County was relatively low. The soil acidification in Mingshan tea gardens is severe, and thoseSin Lushan showed deficiencies in phosphorus and potassium content.