The invention discloses an automatic search engine method and system based on network public opinion analysis, the system comprises a platform positioning analysis module, a public opinion analysis module, a theme screening module and a content pushing module, and the system can capture hotspot content according to customized keywords of a platform to complete content analysis of the system and anexternal platform; meanwhile, curves of propagation paths, operation data, emotional trends and the like of the content are displayed, and complete and scientific propagation analysis is displayed; by tracing the captured content, the source of the content is accurately tracked to realize accurate traceability analysis, and copyright protection is facilitated; through professional and intuitive big data visual display, a statistical report of the system is made according to large-screen display, so that a manager can perform data operation conveniently.