Abstract: The Chongqing Project 816 is a key military industrial project of the Third Front Construction and serves as the second nuclear raw material industrial base in China. Since its establishment in Fuling in 1966 until its transition from military to civilian use， it has undergone nearly 60 years of construction and transformation. The living quarters， as a vital component of the Project 816， represent the most direct material manifestation of its social form， reflecting changes in China’s planning and construction models. This study commences with an overview of the basic situation and development history of the Project 816 living quarters. Subsequently， it examines the housing policies within the living quarters of the Project 816 during the 1970 to 1999， particularly conducting an in-depth analysis of the allocation principles， housing standards， and rental conditions during the period of housing allocation. The study summarizes the reform stages and characteristics of the housing system in the living quarters of the Project 816. Ultimately， the study analyzes the architectural forms and spatial layouts of the living quarters， categorizing the typical structural forms of residential buildings in the Project 816 living quarters， represented by earth-rammed structures， red-brick buildings， grey-brick buildings， and cement buildings. Furthermore， it explores the evolutionary characteristics of their spatial layouts， aiming to provide a theoretical foundation and basis for the preservation and development of the Project 816 living quarters.