Building an intelligent acquisition model of enterprise diagnostic information with the help of computer technologies such as data mining, laying a foundation for the design of intelligent diagnostic system for enterprises in the later stage. On the basis of elaborating the current status and process of each diagnostic subject of the service enterprise, by comparing and analyzing the current status of each diagnostic subject and the diagnostic information collection status of different diagnostic subjects, an intelligent collection model of the service enterprise diagnostic information based on data mining was constructed. Data acquisition model integrated the diagnosis of the basic process of information gathering, with the help of data mining, OLAP and web crawler technology to realize information collection, information service enterprise diagnosis of pretreatment, intelligence gathering, and other functions into one, increase the synergistic effect of intelligence gathering and intelligent, implementation services intelligence diagnosis knowledge acquisition of automation and intelligent function.Through analysis, the application of data mining technology, data warehouse technology, pattern recognition and feature recognition in the information acquisition of enterprise diagnosis is an effective way to improve the intelligence of enterprise diagnosis, and it will also be an important development direction of enterprise diagnosis intelligence and man-machine integrated diagnosis.