门窗是建筑体必不可少的组成部分之一,与人们的日常生活息息相关。建筑门窗的主要功能有室内采光、通风换气、隔热保温等。在我国常见的建筑外围护结构中,建筑门窗是建筑保温性能的薄弱点所在。就我国当前最为常见的建筑门窗类型入手,分析保温门窗保温性能的现状及改善途径。 Doors and windows are one of the essential components of a building and are closely related to people’s daily lives. The main function of building doors and windows are indoor lighting, ventilation, thermal insulation and so on. In our country’s common building envelope, building windows and doors is the weak point of the building insulation performance. Starting with the most common types of construction windows and doors in our country, this paper analyzes the status quo and the ways to improve the thermal insulation performance of thermal insulation windows and doors.