Therefore, symbiotic unit, symbiotic mode and symbiotic environment become the basic elements of symbiosis. According to this theory, rural tourism, rural accommodation and rural environment are all part of the symbiotic system. Homestay is based on rural tourism, and it is also a tourism product in the development of rural tourism. Whether it's rural homestay or rural tourism, it depends on the unique rural tourism resources and tourism environment. Therefore, the development of rural tourism makes homestay come into being, and the development of homestay can promote the development of rural tourism. Both rural tourism and rural homestay should realize the harmony and symbiosis with the rural environment.