Abstract: The intelligent building is an important task facing the coal enterprise using the networking, informatization and artificial intelligence technology. Based on the analysis of Zhangjiamao coal preparation plant composition and washing technology, product structure, management and production status quo, and the construction thought of intelligent mines and factory, combined with intelligent application platform of Zhangjiamao, task objects and specific contents of the intelligent building are determined. According to the requirements of the task objects, the intelligent architecture for the coal preparation plant is desiged, including a hierarchy, the role and function of each level. On the basis of the intelligent architecture, the system structure diagram also is desiged. Intelligent system structure and solutions for coal preparation plant of intelligent construction to provide the basis.