A pot experiments were conducted to study the effects of the application of combined remediation of Chinese milk vetch(Astragalus sinicus L.，CMV)and red mud(RM)on soil properties and rice yield in moderate and mild cadmium polluted paddy fields. The results showed that in the whole growth period，the increase of soil pH value of CMV-RM1 and CMV-RM2 treatments was lower than that of RM1 and RM2.The pH values of CMV-RM1 and CMV-RM2 treatments were significantly higher than that of the control treatment，with significant differences (P<0.05).However， there was no significant difference between CMV-RM1 and CMV-RM2 treatments.Compared with the control，the content of soil organic matter， cation exchange capacity and alkaline nitrogen in CMV-RM1 and CMV-RM2 treatments in different periods were higher than those of other treatments. There was no significant difference between CMV-RM1 and CMV-RM2 treatments. Compared with the control，RM1，RM2 and CMV treatments，the combined remediation improved the yield components and grain yield. The plant height，effective panicles，grains perpanicle，seed setting rate，1000-grain weight and yield of CMV-RM2 and CMV-RM1 treatments were higher than those of other treatments，but there was no significant difference between CMV-RM1 and CMV-RM2 treatment. Therefore，compared with adding red mud alone or simply turning over milk vetch，the combined remediation of CMV-RM treatments is an economic，efficient and repeatable method for the remediation of cadmium contaminated acid paddy soil. Considering the remediation effect and minimizing the amount of chemical repair agent，CMV-RM1 treatment is recommended.