Data mining technology can complete concept description work, association analysis work, classification and prediction work, cluster analysis work, heterogeneous analysis and detection work, evolution analysis work, and data reduction work. At this stage, the application of data mining technology has practical characteristics, and has been widely used in the telecommunications, banking, medical, insurance, and transportation fields. Using data mining technology, database marketing, background analysis, and Customer group classification work, market cross-selling work, customer relationship management work, etc. For example, in the banking field, the use of data mining technology can analyze customer reputation and avoid credit card fraud. For example, in the medical field, the use of data mining technology can complete medical diagnosis. In addition, data mining technology can also be applied in the agricultural, industrial, Internet, and military fields.