The invention relates to a travel industry based on large data promotion method and system, including : to the particular area on the travel industry in heterogeneous cross-media information is gathered; heterogeneous cross-media information to the shallow analysis processing, to obtain a plurality of standard vocabulary; standard terms to the semantic analysis, win the Internet content characterization of the feelings and views; according to the emotional and perspective, analysis of network information embodied in the right all of the tourism industry of public opinion; according to public opinion, adjust the corresponding outreach of the tourism industry. The invention through the travel industry in a specific area on the heterogeneous cross-media information is gathered, and then through the shallow layer of heterogeneous cross-media information analysis processing, semantic analysis, determining network information embodied in the travel industry to public opinion, thus in a large amount of data can be found in the consumer preferences and needs of the user, and then determining the personalized, the difference tourism promotion of the programme, improve the accuracy of the promotion.