The present disclosure relates to the field of drugs and health foods. Disclosed is a traditional Chinese medicine composition comprising GANODERMA polysaccharide, MORINDAE OFFICINALIS RADIX polysaccharide, POLYGONATI RHIZOMA polysaccharide, ANGELICAE SINENSIS RADIX oil and MYRISTICAE SEMEN oil. Experiments show that the traditional Chinese medicine composition has a scientific formulation, synergistic functions, without toxic and side effects, and not only has nutritional value but also inhibits the growth of tumor. Comparing with individual components, the composition significantly increases the percentages of CD4+ and CD8+ cells in lymphocytes of the tumor stroma, enhances body immune function, restores normal immune surveillance function, decreases VEGF and TGF-β1 positive cells in tumor tissue, assists in treating tumor, increases antitumor effects of chemotherapy drugs, improves immune status of body, has the function of restoring normal immune surveillance, preventing and assisting in treating tumor.