Shanghai and Hong Kong's urban competitiveness has been a popular issue concerned by the international community,the Chinese University of Hong Kong and Hong Kong and Macao Studies Center,Shanghai Academy of Social Sciences have investigated and analyzed on this issue since 2001 when they cooperated,and constantly carry out press release in Hong Kong for seven years,which caused great social repercussions.The paper mainly review and study on the relevant factors of the motivation,the process and the index system around the topic,so as to understand the research background of this issue better. <<