Abstract: Taking the Chinese yam variety ‘Ya Yam No.1’ as experimental material, and the methods of variance analysis and correlation analysis were used, the effects of soil nutrient content on leaf yellowing of Chinese yam were studied, in order to provide reference for improving the current production status of yellowing Chinese yam bases.The results showed that with the leaf yellowing degree of Chinese yam increasing, the pH and exchangeable Ca content in soil increased gradually, and the fresh soil water content, available N,rapidly available K,effective Fe, total Fe, effective Mn decreased gradually, and the content of soil organic matter and effective P decreased significantly.Only the effective S content of level 2 yellowing degree was lower than level 0,the soil exchangeable Mg, effective Zn, effective B and HCO^-₃ content were not significantly different from level 0.Correlation analysis results showed that the soil pH was significant positive correlation with exchangeable Ca, and both were significant or very significant negative correlation with soil water content, organic matter content, available N,effective P,rapidly available K,effective Fe, total Fe, effective Mn.This study preliminarily determined that the leaf yellowing of Chinese yam was related to the increase of pH and Ca content as well as the decrease of organic matter, water content, N,P,K,Fe and Mn content in soil.