According to the current development status of percentage companies, the differences among them can be explained. Data description and analysis business for big data, and its core technologies include massive data storage and processing, data warehouse, data mining, machine learning and so on. The focus is on data collection, access, storage, analysis and query, and the focus is on the processing of massive data. Data intelligence is to describe and analyze reality with data, and ultimately drive business intelligence. Data intelligence includes big data, artificial intelligence, Internet of Things and cloud computing, emphasizing business applications. Cognitive intelligence enables computer systems to understand human language and knowledge, which requires natural language processing and knowledge mapping.