The invention provides a monitoring method of public scientific-research information. According to the method, a scientific-research information resource directory is set up, an information pool is established, matching association rules are set, retrieval subjects are classified and associated, multidimensional monitoring results and association networks of the retrieval subjects are displayed, multidimensional classification of the scientific-research information, multi-factor association of scientific-research information retrieval and multi-factor network relations of scientific-research information retrieval results are supported, real-time updating of the scientific-research information resource pool is supported, thus monitoring and analyzing the scientific-research information are realized, and the decision-making efficiency of scientific-research work is improved.