Abstract: Degraded paddy soil resulting from turfgrass cultivation in Fengyu Village, Liuyang City, was selected as the research object. Four treatments were established:cassava monoculture(C), soybean monoculture(S), cassava-double-season soybean intercropping(CS), and cassava-double-season soybean intercropping with fertilization(CSM). Soil samples from the 0~15 cm and 15~30 cm layers were collected at the yellow maturity stage of spring and autumn soybeans. Soil physicochemical properties were measured to evaluate the improvement effects of different planting patterns on the degraded paddy soil in eastern Hunan. The results showed that compared with the initial state before treatment, all treatments significantly reduced soil compaction(74%~85% reduction in topsoil, and 27%~51% in subsoil). Compared with the initial state, at the yellow maturity stages of both spring and autumn soybeans, significantly increased soil pH value by 0.6~0.9 units. In the subsoil, the CS and CSM treatments increased soil organic carbon content, dissolved carbon, and dissolved nitrogen by 16%~67%, 28%~227%, and 18%~49%, respectively. Compared with the initial state, soil available nutrient levels were generally improved during the yellow maturity stages of spring and autumn soybeans. Soil total phosphorus and total potassium contents increased significantly by 16%~62% and 22%~41%. Intercropping cassava with double-season soybeans, combined with the application of organic and inorganic fertilizers, can effectively improve soil structure, alleviate soil acidification, enhance soil fertility, and promote soil restoration, which can provide effective technical support for the sustainable reclamation of degraded paddy soils.