With the deepening of medical system reform, there are unprecedented challenges for China’s medical industry. In order to promote hospital core competitiveness, medical enterprises urgently need to be based on industry demand. The establishment of a unified data platform is an important aspect of this process, however the hospital’s data inherent characteristics, makes the effective management a difficult task. This difficulty creates a hurdle for the implementation of an integrated information technology. Considering these obstacles, opting an effective method of data collection, data analysis and data management has become a concern for hospital staff. The hospital data analysis and decision support system make full use of the massive data deposited in the existing digital information system of the hospital. This cannot only facilitate the manager to monitor the operation and management of the hospital, but also predict its future development direction based on the historical data. This article mainly focuses on the characteristics of hospital data analysis and decision support, and application. We studied the hospital’s data analysis and decision support system for advanced technology as our guide.