The question of “Hong Kong 2047”which has been implied by the Sino-British Joint Declaration and Basic Law of the Hong Kong Special Administration Region，has become the main topic in the post-political reform.From a policy point of view，“One country，Two systems”“remain unchanged for 50 years” is typical of long term and relativity，which has been depended on the comprehensive elements of economy，politics，culture，society etc.Exploring the law practice in HKSAR，the Basic Law is a “live” law，which has been enriched and exposed problems during the process，such as the discussion of Hong Kong 2047.There have been three kinds of views on this question in the Hong Kong society，unchanged，little changed and big changed.The central government should take an active position，adhere to the fundamental goals of the national unity and development and Hong Kong's prosperity and stability，and readjust the role of Hong Kong，in order to answer the Hong Kong 2047 by pushing the Hong Kong to integrated with our national development.