In order to objectively and accurately evaluate the quality of sensory characteristics of Fu brick tea from different origins,combining sensory review,chemical component detection,chemometrics and other research on the sensory quality characteristics of the Fu brick tea from different origins and its discernment model construction.The results show that the sensory quality of 19 Fu brick tea from Hunan,Zhejiang and Shanxi has very obvious differences due to the different material bases of the raw materials.Among them,the taste score (TS) of Fu brick tea showed significant correlation with caffeine (CAF),water leachate (WL),catechin (CAT) and epicatechin (EC),with the correlation coefficients (P<0.05) of 0.81,0.62,0.55,and 0.50,respectively.Meanwhile,the principal component (PCA) based on chemical components showed that the cumulative variance contribution of the first four principal components was 79.48%,and the linear regression equations and contribution of the first four principal components were used to construct the sensory quality evaluation model and the origin discrimination model of Fu brick tea.Oethogonal projections to latent structures discriminant analysis (OPLA-DA) showed that the 19 Fu brick tea samples from different origins were clearly divided into three groups,and the evaluation model had a high recognition degree for Fu brick tea from different origins.The model was validated using the cross-validation method and the model had a fit index (R²X) of 0.879 for the independent variable,(R²Y) of 0.992 for the dependent variable,and a predictive index (Q²) of 0.53.A total of six variance indicators with variable importance in projection (VIP) values greater than one were identified by OPLS-DA,among which caffeine,water leachate,tea polyphenols,and soluble sugars were the signature variance quality components of sensory characteristics of Fu birck tea.The results show that the application of sensory review,chemical component detection,chemometrics and other methods can achieve the rapid and accurate discrimination of the sensory characteristics of Fu brick tea from different origins,and at the same time,it also provides a new reference method for the discrimination sensory characteristics of Fu brick tea from different origins.