In order to explore the effect of different fertilization measures on yield and quality of Daye tea in Menghai as well as to alleviate tea quality decline，soil acidification and non-point source pollution and other environmental problems caused by long-term unreasonable fertilization in tea garden，a two-year field plot experiment was conducted on the representative tea garden in Menghai county in which four different fertilization treatments were employed to study the effect of different fertilization measures on yield and quality of tea in Menghai county.According to the results of the study，the effects of four different fertilization treatments on the yield and quality of tea had delay features that the difference was not significant in the first year，but the difference began to appear in the second year.Compared with conventional fertilization，the application of specialty tea leaves for tea trees increased the yield of spring tea by 31.36 kg per hectare in March，and the yield increased by 16.27%，followed by organic fertilizer instead of partial chemical fertilizer.In terms of quality，organic fertilizer substituting for chemical fertilizer had the best effect on amino acid，tea polyphenol and caffeine in tea，and the quality was 36.41%，14.34% and 28.00% higher than those of conventional fertilization，respectively.The application of special fertilizer for tea tree had the best effect on improving the content of water extract in tea，which increased by 10.22%.In the case of reducing nitrogen input in conventional fertilization，organic fertilizer substituting for chemical fertilizer can improve the yield and quality of tea，which can be popularized in Menghai county.