Abstract After joining WTO, the domestic architecture market has been developing freely and internationalizedly. And this is an impact for the environment of architect business office.Hence, facing graduatedly large, complex, and complicated technologically intergrated engineer, architects are little by little accessed that it seemed negative influences on futher business once they did nothing for the demands of rapid changing environment. Finally, they will find the solutions to overcome the hard time through improving, downsizing, emerging with other companies or other ways to change the types of organizations. Case study was implemented in this thesis to find the key factors of business continuity through understanding the development patterns of the H.H Chang Architect & Partners Co. and propose the practicable suggestions for the futures after the dead of H.H Chang. There are other four partners interviewed, and that took around six hours. The conclusions are as below, First, they have conventionally stabilized business style. Selection is the first step of shaping the organization indentity. To selection good and proper persons as partners is key to business continuity. They have common personalities of pursuing the stable life and emphasizing the ethics and this had an huge influence on turn over rate of theis company. Besides, the systems which were established by HH Chang are never being questioned and adjusted, and the influence power still exists even he left the TMT (Top Management Team). Excellent systems help them overcome the valley of business recycles. Second, the business continuity is the core value they own. HH Chang has never been taking the company as his own asset. Instead, one thing he only cares is business continuity, and that is the system of public fund for daily operation expenses. This system has been thoroughly implemented and lasted for 35 years. Finally, social responsibility is their business goal.The establishment and continuity of public fund is not only kind of bussiness stability and continuity but also can be seen as social responsibility and employee care. Besides, they also provide better offers to emplyees in this field to attract excellent peple to join them. Key word¡GHH Chang Architect& Partners Co. Business continuity