The conclusions were as follows: The collective memory of city was discussed to be a synthesis and interplay system consisted object, subject (including user and representor) and media.

• 论文的主要研究内容与结论如下:论文阐述了城市记忆是由城市记忆客体、城市记忆主体(包括城市记忆载体表现者与城市记忆载体使用者)和城市记忆载体在时空中互动作用的系统。