EGF Step Immunoreconstitution Therapy can effectively treat Crohn’s disease, ulcerative colitis and other inflammatory bowel diseases. EGF Step Immunoreorganization utilizes the high affinity of EGF epidermal cell growth factor and EFG to promote the proliferation and differentiation of epithelial cells, which can repair the mucous membranes of the intestinal tract where inflammation or ulceration occurs, and at the same time eliminate the inflammation. The EGF Step Immuno-Recombinant Therapy is a targeted injection to the bowel wall where inflammation and ulcers occur with the assistance of electronic colonoscopy, which is able to act on the lesions more precisely. It is non-invasive, short and inexpensive, and it is effective for Crohn’s disease and ulcerative colitis because of the ability to visualize the recovery of the intestinal wall during the treatment process. EGF step immunoreconstructive therapy needs to assess the degree of lesions and typing of the patient’s lesions, and it is recommended that the patient go to a regular hospital.