As once the most common form of dwelling in Shanghai, the Lilong has played a vital role in Shanghai's local culture. Gradually declining in number during the second half of the 20th century, it is now faced with a challenging and undecided future. This thesis aims to further the discussion of the preservation of Lilong neighborhoods in its fundamental relation with people and basic social context. Four case studies, Tian Zi Fang, Jian Ye Li, Jing An Bie Shu and Bu Gao Li, are used to add some realistic, specific details and to deepen the reflection on this topic. Each of the cases has its special architectural features, residential composition, history, and current problems all of which provide some insight into the uniqueness and individuality of every Lilong neighborhood. In the end recommendations are made to address to Lilong residents' right and to call for an equal way of Lilong preservation as a means to a better living environment for everyone and a more equitable society.