With the wide application of distributed generation and energy storage equipment, energy internet based on energy construction of new energy and internet technology is developing rapidly. Connected with the grid, distributed power generation equipment, energy storage devices, and load power, energy router is designed to meet the needs of the energy internet, which enables the generation optimal dispatch management of distributed power and load. This paper presents the basic structure of community energy networks. Energy router is designed as its smallest terminal, controlling and scheduling home electrical system. Based on the analysis of power router design requirements, the proposed solid state transformer-based energy router features plug-and-play, multiple-input and multiple-output (MIMO), connecting, controlling and scheduling renewable energy resources, energy storage devices and loads of the home electrical system. This work is supported by National Natural Science Foundation of China (No. 51377104 and No. 51407115), Science Foundation of Ministry of Education of China (No. 113023A), State Grid Corporation Headquarters Projects (No. SGTJDK00DWJS1500098), and China Postdoctoral Science Foundation (No. 2014M560333).