Purpose/Significance To explore the dissemination mechanism of pseudo-health information on social media platforms, and to provide support for managing the chaos caused by pseudo-health information. Method/Process A model of pseudo-health information propagation based on user psychological characteristics is constructed, and MATLAB 2018b software is utilized for simulation analysis to explore the influence of these characteristics on the spread of pseudo-health information. Result/Conclusion The psychological characteristics of users play an important role in the dissemination of pseudo-health information. The intensification of herd mentality and anxiety will accelerate the spread of pseudo-health information, and the improvement of the level of information risk perception will help restrain the dissemination of pseudo-health information.