The article uses big data technology to process massive user blogs, constructs user microblog information micro-ontology and topic micro-ontology by using processed blog information, and based on micro-ontology matching technology to efficiently match, thus proposes a kind of based on the microblog information recommendation method of big data and micro ontology architecture, the recommendation of microblog information is realized. The simulation verification results confirm that the recommendation model of micro-ontology under big data technology can effectively improve the efficiency and accuracy of microblog information content recommendation, and it is of great significance to optimize the personalized recommendation of microblog information content.