Objective To discuss the curative effect of MOTOmed training system on the muscle force of upper limbs in patients with CSCI paraplegia .Methods 205 patients with CSCI paraplegia were randomly divided into the observation group (n =99) and the control group (n =106).The control group used conventional treatment of acupuncture , physiotherapy and exercise , while the observation group received MOTOmed seat training system in addition .Functional assessment , muscle force assessment and QIF were conducted and compared between two groups before and after intervention .Results After 4 courses of treatment, the score of left and right muscle force was (10.98 ±2.01)and(10.96 ±2.18)in the observation group.After 8 courses of treatment, the score of left and right muscle force was (11.97 ±1.94)and(12.15 ± 1.94).The scores were significantly different from those in the control group (t=2.238,2.106,2.643,2.608, respectively;P<0.05).Before recovery training, there was no statistically significant difference between two groups (P>0.05).But after training, the difference was statistically significant (P<0.01).The total score of QIF was (46.25 ±2.115) in the observation group, better than that in the control group, and the difference was statistically significant (t=1.963,P<0.01).Conclusions MOTOmed training system can increase the muscle force, muscle hypertonia and muscle strength of patients with CSCI paraplegia , so as to improve their quality of life.