The breakthrough of informatization expands the living space of human beings and brings people into the era of ternary space, that is, the era of "physical space-social space-cyberspace". The political field that is formed by NIMBY movement in the ternary space breaks the original domain space configuration and behavioral inertia. This paper uses the ternary space model from the perspective of field theory to analyze the NIMBY movement caused by the construction of the hazardous and solid waste disposal center in the X town of the Pearl River Delta. This movement originated in the social space, and in a short period of time, it turned to cyberspace and formed a political field, which triggered the polarization of group emotions. The information cascade also went from the local to the outside, and the protesters quickly moved to the offline physical space. In the process of space conversion, the local residents, the interest groups and the party committees use their own resources and action repertoires in different spatial fields to compete for greater space capacity and dominant behavior. The ternary space model provides a new perspective for the governance of NIMBY projects. To effectively promote the NIMBY projects, the governments and the corporations should examine the maintenance of the three spaces, the movement of the groups and their transition among the three spaces. Additionally, the governments should strengthen the liaison with the groups, and enhance the governments’ accumulation and application of social capital.