From March 29 to 30, 2004, the conference of “ Global Summit 2004 Applications of Stem Cell Research” was held in Great Wall Sheraton Hotel, Beijing , China . Prof. Rong Xiang Xu was invited as the key lecturer to deliver a speech on the conference titled as “ Applied Research on In Situ Regeneration of Gastrointestinal mucosal tissue Organ from Tissue Cells” . After the speech, scientists asked many questions about organ regeneration. They wanted to know more about the leading research. Many scientists invited Prof. Xu to their organizations to give more lectures. They believed that MEBO would change the direction of world life science.