As a landmark building in a city, large sports venues require novel design and unique appearance, which can promote the quality of the city and stimulate the vitality of the city. Modern comprehensive stadiums and gymnasiums should meet many requirements, such as strong professionalism, compact layout, diverse functions, intelligence and efficiency. The consideration of use during and after the game, and the pursuit of the unity of professionalism and comprehensiveness have become an important content of sports architectural design. This paper discusses the power supply and distribution, lighting, electrical fire fighting, energy saving and intelligent systems of "one field and two pavilions" of Xi'an Olympic Sports Center, which not only provides countermeasures for modern sports architectural design, but also contributes professional forces for Xi 'an to comprehensively improve the level of urban electrification and build a national central city under the new development pattern.