Academic research on the surrounding villages of the Three Hills and Five Gardens began in the early 20th century. As scholars had different emphases, their researches presented a brilliant situation. In the study period, some scholars focused on the development and changes of the surrounding villages before and after the Three Hills and Five Gardens appeared, whereas others were concerned about their development conditions in modern and contemporary times. In the perspective of research, there existed either sociology, folklore or history, historical geography, archaeology, cultural heritage angles, etc. In terms of content, some scholars focused primarily on the surrounding single village while some researchers paid attention to the general overview of the surrounding villages of the Three Hills and Five Gardens.