Summary1. Introduction2. Definitions of terms3. Collective memory contributes to economic development4. Promote identity5. Act as a teaching support6. Maintain the multifunctional society7. Criticism is for improvement8. ConclusionAppendices1. Image reference2. Book ReferenceIntroduction“Memories reveal the culture, history and times of the city. » (Aldo Rossi, 1982). The demolition of Star Ferry Pier and Queen's Pier in 2006 and 2007 raised awareness of the debate on collective memory and urban development in Hong Kong. The incident even sparked protests, hunger strikes and clashes between demonstrators and police. After this, the government identified collective memory as an important consideration in the protection and conservation of heritage. “It is the value of history, which symbolizes the memory of citizens. These memories shape people's perceptions of a city. (Aldo Rossi, 1982). Due to the public awareness of heritage conservation, this highlights the need to continue our cultural significance for the next generation. This increases the debate on how to conserve and revitalize historic buildings. However, in the face of rapid increase in human population and high-speed urban development, land use requirements become crucial in society. People are suffering from high property prices. This leads to the demolition or destruction of historic buildings, sparking opposition from conservation parties and local residents. From incidents, for example, the removal of the Star Ferry Pier and the revitalization of the Blue House, their protests and confrontations delayed and suspended development policies, which affected the ec...... middle of the paper..... .m and cultural identity Chinese adolescents in Britain and Hong Kong: identity and aspirations: Ashgate Publishing Ltd. Lowenthal, D., 1985, The Past of a Foreign Country, New York: Cambridge University Press. Halbwachs, M, 1992, On Collective Memory (LA Coser, Trans.). Chicago: The University of Chicago Press. Pennebaker, J.W. and Banasik, aEL (Eds.) (1997). On the creation and maintenance of collective memories: history as social psychology, United States of America: Lawrence Erlbam Associates. Louis I. Kahn, 1985, John Lobell, Between Silence and Light: Spirit in the Architecture of Louis I. Kahn, Boston: Shambhala Publications, pp.44. Aldo Rossi, 1982, The Architecture of the City, London: The MIT Press, pp.130Hong Kong Government, 2007, letter from CE to Hong Kong, available at [Accessed January 5]