Abstract: 【Purpose/significance】With the increasing popularity of the Internet and the wide application of new media technology, the
polarization of network public opinion groups is increasing. It is of great significance to study the polarization dynamics mechanism of
network public opinion groups and scientifically grasp the evolution law of Internet users' emotions for shaping a healthy public opin?
ion ecological environment.【Method/process】Taking the emotional evolution of netizens as the main line, this paper constructs a dy?
namic model of group polarization system of network public opinion, and simulates the group polarization of network public opinion
from three dimensions of emotional arousal, emotional interference and emotional relief, combined with the case of women's real-name reporting grandmother's empty pay.【Result/conclusion】Through the analysis of the simulation results, the media literacy and cogni? tive level of netizens ; media agenda setting, platform supervision ; the government' s information disclosure, response speed and other factors have more important influence on group polarization, and provide corresponding countermeasures for the governance of group polarization.【Innovation/limitation】Qualitative and quantitative structural systematic study on group polarization of network public opinion from the perspective of emotional evolution. The limitation is that the quantitative processing of data has strong subjectivity
and the selection of system factors needs to be gradually improved.