Abstract: It was summarized special commenting-selecting,outstanding and final choose,and proposal modification from proposals of international design competition for Shenzhen Universide Sports Centre.The concept design was emphasized and introduced for challenge steel structure.The origin of design ideas was explained in simple words and arguments.The feasibility of the structure system was elaborated in most basic principle of structure mechanics ,and its marrow was also pointed out.Finally,the practical operations of the implemented scheme were introduced,such as structural test and research,design and construction,and evaluation of structure technique level etc．