Firstly, this paper proposes the definition and characteristics of micro energy networks, and describes the transformation and construction purposes of various energy forms in micro energy networks. We have established mathematical models for various forms of energy, including wind power, photovoltaic, natural gas, and electrical energy storage. We have established a mathematical model for the energy hub matrix, which provides a computational basis for the transformation of various forms of energy. Then, based on the previous research, an optimization function for the maximum of energy supply capacity of micro energy networks was proposed, which is a mixed integer linear programming problem and solved. Finally, based on a project example in China, calculations and analysis were conducted, and conclusions and suggestions were drawn.