Investigating the multifunction change of rural housing land is important to guide appropriate land use adjustment and rural land planning. This paper develops a multifunction identification method from the perspective of farmer households’ land-use behavior, and analyzes the change in function types and patterns based on survey data of 613 typical farmers in Pinggu District. It appears a trend of function specialization and socialization from 2005 to 2018, along with mutual transformation of subfunction space. The living function of rural housing land became the dominant and specialization function of rural housing land, which the intensity continued to strengthen from 66.4 % to 86.3 %, while the production function intensity of rural housing continuously reduced to 12.6 % due to withdrawal of the subclasses. Under the comprehensive influence of human needs and social development, such as leisure agriculture and tourism in suburb of the semi-mountainous area, non-residential function space withdrew and separated from rural housing land, and then socialized within the village. The specialization function inside rural housing land should be integrated into rural land planning; simultaneously, the public space construction should be reinforced with the socialization of the withdrawal function from rural housing land.

研究农村宅基地的多功能变化，对于指导合理的土地利用调整和农村土地规划具有重要意义。本文从农户土地利用行为的角度开发了一种多功能识别方法，并基于平谷区613名典型农户的调查数据分析了功能类型和模式的变化。2005-2018年呈现功能专业化、社会化趋势，子功能空间相互转化。农村宅基地的居住功能成为农村宅基地的主导功能和专业化功能，强度从66.4%持续增强至86.3%，而农村宅基地的生产功能强度因子类退出而持续降低至12.6% . 在半山区郊区的休闲农业、旅游等人文需求和社会发展的综合影响下，非居住功能空间从农村宅基地撤离分离，在村内社会化。将农村宅基地内的专业化功能纳入农村土地规划；同时，加强公共空间建设，推进农村宅基地退出功能社会化。