E-commerce’s development in construction is the process of IT use. This will lead to institutional changes, and institutional changes will support technical changes. This thesis describe the content and features of e-commerce’s in construction industry, and it require enterprise and government to change their institution, we also analysis the factors to improve or prevent the institutional changes, at last, we put some advice to improve institutional changes. Institution’s main function is to restrain people’s behavior, and e-commerce’s main function is information communication among people. we need to change and adjust our institution to regular our behavior.