A traditional Chinese medicine for treating diabetic constipation belongs to the field of traditional Chinese medicines for treating diabetes mellitus, and aims to have fine effects and take effects fast. The traditional Chinese medicine is prepared by raw materials including selfheal, radix paeoniae alba, notoginseng, radix adenophorae, ganoderma lucidum, Chinese angelica, bunge cherry seeds and the like. The traditional Chinese medicine has effects of reinforcing the vital energy and consolidating the constitution, replenishing qi and blood, promoting blood circulation and removing blood stasis and loosening the bowel to relieve constipation, and has the advantages of having the remarkable effects and exact efficacy and taking effects fast.