This paper analyses the current situation of Chinese building ceramics production lines. For most of the current production lines, the overall equipment efficiency is low, resulting in low production and inefficient usage of energy. Moreover, the traditional manual meter reading in most of the production lines is consuming and it is hard to judge whether the data stored in the database is accurate or not. On the other hand, this paper analyses the development of the Internet of Things (IoT) and proposes an Energy Efficiency Management System (EEMS) for building ceramics production line based on IoT. The required relevant technologies including cloud computing, MQ Telemetry Transport (MQTT), Tornado and RESTful API, are introduced. At the end of the paper, the design of EEMS is presented. Built on the cloud computing centre, the EEMS, with Role-based Access Control (RBAC) and the database interface RESTful API, collects equipment data using MQTT protocol, implements the Tornado web server framework to provide web services and uses web front-end technologies including HTML, CSS and JAVASCRIPT to build web applications. The implement of proposed system can effectively improve the energy efficiency of production lines and the competitiveness of building ceramics enterprises.