China has a long history of agricultural civilization, with vast cultivated land and a large agricultural population. Rural issues have always been the focus of attention in the social process. In recent years, the country has made great efforts to develop the rural revitalization strategy and promote the process of rural urbanization. However, with the shift of the rural focus to the city, the countryside has copied urban elements in the process of urbanization, leading to gradual decline of the unique traditional culture and material civilization of the countryside. The living environment has not been improved well, which has resulted in the separation of people and the environment, the inability to achieve harmonious coexistence, and the phenomenon of "a thousand villages with the same appearance". It shows that at this stage, our understanding of the transformation strategy of traditional rural human settlements is still superficial, and it is urgent for people to conduct in-depth research and exploration on its essence. Based on the analysis and research of the successful transformation case of Dipu Village, Tonglu County, and the concept of harmonious symbiosis, this paper extracts the "symbiosis" design strategy that can avoid damaging the original rural landscape and customs and culture in the process of rural residential environment transformation, and finally achieves the ultimate goal and beautiful situation of harmonious symbiosis between man and nature.