Dikengyuan (Pit Courtyard) is a distinctive type of residential building that originated on the Loess Plateau in China, with the unique construction method of digging into the earth and hidden underground, reflecting the collective wisdom of local communities. It is not an architecture designed by architects, but a result that has evolved over a long period in specific natural and social environments, with multiple typological features of vernacular architecture, earthen architecture, and troglodyte architecture. However, in the context of rapid urbanization and rural depopulation, due to the lack of human use and maintenance, this unique architectural heritage is facing the risk of disappearing.