介绍了变风量空调系统在大型建筑中的良好节能性 ,并对比国内外的应用差距。指出变风量末端装置对变风量系统在国内应用的影响及能耗问题 ,介绍了VAV末端的结构和控制。鉴于国外对该系统的大量应用 ,相信发展变风量末端 ,提高变风量空调系统的应用水平将对我国大型建筑的节能具有重要意义 Introduced VAV air conditioning system in large buildings in the good energy efficiency, and compared the application gap at home and abroad. Pointed out the VAV end device on the VAV system in the domestic application of the impact and energy consumption issues, introduced the VAV end of the structure and control. In view of the large number of foreign applications of the system, I believe the development of variable air volume ends, increasing the level of application of variable air volume air conditioning system will be of great significance to the energy saving of large buildings in China