Application of umbilical cord mesenchymal stem cells in preparing medicament for treating autoimmune disease

The invention discloses an application of umbilical cord interstitial stem cells in the preparation of medicine for treating an autoimmune disease. Marrow interstitial stem cells of a patient who has the autoimmune disease have abnormalities and play an important role in the occurrence and the development of the disease. The umbilical cord interstitial stem cells have the function for inducing immunotolerance and immunoregulation and can be used for preparing the medicine for treating the autoimmune disease.