Lignocellulosic biomass mainly consists of three organic components (cellulose, hemicelluloses, and lignin) and inorganic potassium. The potential influence of potassium on the degradative solvent extraction (DSE) process of the three biomass components remains unknown and requires to be elucidated. In this study, the influence of potassium species (potassium chloride [KCl] and potassium acetate [CK]) on the DSE process of biomass organic components was systematically investigated. The results showed that KCl had a greater influence than CK on the yield distribution and chemical structure of the extraction products during the DSE process of cellulose and hemicelluloses. KCl had the most significant influence on the cellulose extract yield, reducing it from 48.96 % to 23.98 %. Both KCl and CK facilitated the decarboxylation and decarbonylation reactions of cellulose and hemicelluloses, and increased the yield of CO