The beet combine harvester can realize the one-time excavation of beet, the separation of beet-soil, the separation of beet-salt, centralized collection and transportation, etc., and can harvest two ridges at a time. The structure mainly consists of a frame, a depth limited wheel, a beet soil separation device, a clearing and soil removing device, a non-equidistant beet collecting device, a conveying device and a hydraulic system.