The integrated big data platform aims to provide one-stop development and operation capabilities for massive heterogeneous data. Various components are organically combined and managed in a unified way. At the same time, the underlying technical details are shielded from users, so as to finally achieve the purpose of convenient data development, reducing operation and maintenance costs, and standardizing management processes. This article introduces the functional modules that the platform should have one by one, covering data storage, data integration, data management and governance, data development, data processing and analysis, high availability, operation and maintenance management, and data security. Finally, the typical characteristics and development direction of the integrated big data platform are pointed out.