联合收割机（或“康拜因”，英文：Combine harvester，Combine）为农作物收割机械，指能够实现作物收割、脱粒，能够完成籽粒与颖糠、碎屑、茎秆和其他杂物分离的大型农业机械，大型联合收割机还能进行作物籽粒清选、干燥和包装加工。按照行走系统划分，联合收割机分为轮式和履带式二种，根据方向操纵系统划分，分为方向盘式和操纵杆式二种。

维基共享资源中相关的多媒体资源：联合收割机

The combine harvester, or simply combine, is a machine that harvests grain crops. The name derives from its combining three separate operations comprising harvesting—reaping, threshing, and winnowing—into a single process. Among the crops harvested with a combine are wheat, oats, rye, barley, corn (maize), sorghum, soybeans, flax (linseed), sunflowers, and canola. The waste straw left behind on the field is the remaining dried stems and leaves of the crop with limited nutrients which is either chopped and spread on the field or baled for feed and bedding for livestock.