Abstract: In order to make rational use of leaf fertilizer in rice production,the bottleneck problems of low milled rice rate and low planting efficiency of high-quality hybrid rice were alleviated,which restricted the development of high-quality rice industry.Brassinolide,selenium fertilizer,silicon fertilizer,and their different combinations were used as the treatment groups to study the effects of foliar spraying on the yield and quality of high-quality rice varieties,including Longliangyou 534,Huiliangyousimiao,and Xiangzaoxian 45.The results showed that except for Si+Se spraying,which resulted in a decrease in yield of Xiangzaoxian 45,other different treatment combinations significantly increased yield,with selenium fertilizer treatment increasing the yield the most,followed by BR and Si+BR treatments.Under the treatment of selenium fertilizer,Longliangyou534had the best yield increase effect,with the highest effective panicle of 2.670 million per hectare,the highest grain number per panicle of 173.4,the highest seed setting rate of 86.4%,and the highest yield increase rate of 9.76%.The appearance quality and cooking quality of selenium fertilizer treatment were the best,followed by Si and Si+BR treatment.Among the three varieties,Longliangyou 534had the the best results of appearance quality and cooking quality,with the highest brown rice rate of 79.8%,the highest head milled rice rate of 65.8%,the lowest chalkiness rate of 0.6%and the best transparency level of 1.0,the alkalinity spreading value was 6.4,the gel consistency was 69mm,and the amylose content was 13.1%.The net income increase and input-output ratio of Longliangyou 534 were the highest under Se treatment,with values of 148.875yuan·（667m~2）^-1and 15.14,respectively,followed by the treatment of BR,Se+BR and Si+BR.Taking into account the appearance quality,cooking quality,and revenue enhancement effect,selenium fertilizer treatment had the best effect,followed by Si+BR treatment.This study found that spraying foliar fertilizer can effectively improve the yield and quality of high-quality hybrid rice.This method had less investment and significant yield increase effects,which can effectively increase the planting efficiency of highquality hybrid rice and facilitate large-scale promotion and application,effectively promoting the development of the rice industry.