Abstract: In order to promote the development of energy management automation and rational use of intelligent energy, a design scheme of intelligent energy management and control system based on Internet of things(IoT) is proposed. The comprehensive carrying capacity of energy is calculated from the aspects of ecological environment, resource carrying capacity and economic carrying capacity to provide effective control basis for intelligent energy management and control system. The IoT is introduced to determine the overall architecture of the system, and the system is divided into three levels. The system functions are designed from three aspects of data collection, energy consumption analysis and energy conservation management. The service operation logic is set, and energy consumption prediction model is built by using least square method to realize real-time early warning. This paper designs the system sensor nodes and processors and other hardware devices, sets the software running process, and completes the designing of the intelligent energy management system. The simulation results show that the system has powerful real-time data acquisition function, which can timely find and control the unreasonable use of energy, and promote the rational use of intelligent energy.