The invention discloses a traditional Chinese medicine composition and preparation for treating anorectal diseases. The traditional Chinese medicine composition is prepared from, by weight, 5-10 parts of rhizoma coptidis, 5-10 parts of amur cork tree bark, 5-10 parts of radix et rhizoma rhei, 3-8 parts of radix angelicae sinensis, 3-8 parts of rhizoma curcumae longae, 5-10 parts of radix angelicae, 3-8 parts of magnolia obavata herbs, 5-10 parts of pericarpium citri reticulatae, 5-10 parts of rhizoma atractylodis, 10-20 parts of herbal schizonepetae, 18-25 parts of flos lonicerae, 2-5 parts of myrrh, 12-18 parts of licorice roots and 11-13 parts of cortex dictamni. The traditional Chinese medicine composition and preparation have the effects of removing toxicity for detumescence, breaking stagnation for hemostasis, achieving astringing for analgesia, promoting wound healing and improving crissum blood circulation and have a particularly outstanding treatment effect on anus galls, bleeding, pruritus, ulceration and other symptoms; the illness state of a rectal cancer patient is relieved to a large extent after the rectal cancer patient uses the traditional Chinese medicine composition and preparation; the drug can also be used during pregnancy and lactation and is free of side effects on the human body, and no adverse reaction is caused after the drug is taken.