From the perspective of subculture groups, full size sex dolls have a unique position in some specific subculture groups in the United States. For example, in some fetish subculture groups, sex doll USA have become an important object of their emotions and desires. These groups have formed their own communication circles and cultural activities around full size sex dolls. They will share their experience in collecting and customizing dolls, and even hold related theme parties. This subculture phenomenon not only reflects the diversity of social culture, but also prompts society to pay more attention to the needs and psychological state of these niche groups, and further promotes society's understanding and tolerance of multiculturalism.