In this study, a pot experiment was conducted and pH value and CaCl₂ extractable cadmium (Cd) were determined to investigate the effects of combined amendments (lime and sepiolite) on the plant dry biomass and Cd accumulation of Brassica chinensis L. The results showed that the remediation effects in acid soils were greater than those in calcareous soils. Correlation analysis showed that soil pH, organic matter (OM) contents, clay contents and total Cd were the key factors affecting the biomass of B. chinensis. Soil pH, CEC, OM and clay contents were the key factors affecting Cd concentration in B. chinensis. Soil pH, CEC, total Cd and clay contents were the key factors controlling soil extractable Cd concentrations.