Abstract: The popularization of the Internet and the construction of digital villages have made access to the Internet an important part of left-behind children’ s lives, compensating for the social construction of left-behind children in the absence of family and social environments. After structured interviews with left-behind children in poverty alleviation relocation resettlement sites in Dongchuan District, Kunming City, Yunnan Province, this paper adopted Rosa’ s theory of social acceleration, and in sorting out the relationship between social acceleration and the media, it was found that affected by the inequality of socio-economic development, left-behind children’ s living conditions were out of step with the accelerated society that is moving forward in general, and that the Internet connects left-behind children, who were out of step with modernity, with mainstream society, so that the Internet connects left-behind children, who were out of touch with modernity, to mainstream society, enabling them to make a U-turn from the track of deviating from the accelerated development of society and to open their eyes to the world again. When they were reconnected with the mainstream society, they were bound to be affected by the accelerated society, and on the one hand, they got positive compensations such as emotional belonging and self-worth realization, and on the other hand, they frequently showed preferences for recreational and fragmented use, which manifested new alienation characteristics.