Abstract: In recent years,a lot of problems appeared in some steel structure engineerings and steel structure industry,such as :the strange structures,the complex constructions,the difficulty of manufacture erection,the waste of materials,the expensive investment and so forth.All of the basic reasons come from the strange conception and design.Hence,the correction of design conception,the mastery of advanced technique and the meticulous creation of designing will be the key to the sound and active development of the steel structure industry in China.