The invention discloses an externally used Chinese medicine preparation for curing diabetic foot, which comprises the following materials: 10 to 30 parts of psoralea fruit, 10 to 30 parts of purslane, 10 to 30 parts of clematis root, 10 to 30 parts of notoginseng, 10 to 30 parts of frankincense, 10 to 30 parts of myrrh, 10 to 30 parts of rhubarb, 10 to 30 parts of yellow corktree bark, 10 to 30 parts of calamine, 10 to 30 parts of cortex dictamni radicis, 10 to 30 parts of fired garden burnet, 10 to 30 parts of safflower, 10 to 30 parts of broom cypress, 10 to 30 parts of hyacinth bletilla, 10 to 30 parts of rhizome of drynaria, 10 to 30 parts of Chinese angelica root, 10 to 30 parts of earthworm, and 10 to 30 parts of minium. The externally used Chinese medicine preparation promotes local blood circulation and the growth of granulation tissue, and protects wounded area, prevents the wounded area from being rubbed and collided, can also isolate the wounded area from the environment, and reduce the occurrence rate of bacterial infection, thereby being capable of greatly improving the curative ratio of DF, and obviously reducing the healing time of ulcer surfaces. Obvious untoward reactions are not discovered during treatment, so that the externally used Chinese medicine preparation is safe and effective to be applied to clinical work, and is worth of further amplification.