Four Chinese herbs were chosen for this study. They were Panax pseudoginseng wall (PPW), Loniconica japonica thunb (LJT), Polygonum cuspidatum (PC) and Jilin ginseng (JG). They were given from the 2nd to the 7th postburn day (PBD). The results showed that the response to antigen signal, the proliferative capacity, the interleukin II production function, and the antibody production ability by lymphocytes in control burned mice were more noticeably reduced than that in the normal mice. The PPW, LJT, PC might restore all the impaired functions in different degrees. The JG showed no effect at all.