Based on coal chemical industry in the power supply and distribution system, electrical equipment and lighting, as well as improper design and application was easy to cause a lot of energy waste, coal chemical industry enterprise electrical energy-saving design following the basic principles and the main content of electrical energy saving were introduced, and based on this, advancing the electrical energy saving design, and considering the regenerative electric heating system, water source heat pump, such as comprehensive energy, highlighted to coal chemical industry enterprise power supply system for reasonable planning, selecting reasonable distribution substation, transformers, from motor energy saving, multiple aspects, such as lighting energy saving and circuit for electric energy saving application.