The utility model relates to agricultural machinery, in particular to a one-ridge two-row carrot combine harvester. Including a machine frame, the machine further comprises a double-row seedling supporting and feeding device, an excavating device, a double-wheel depth limiting device, a clamping, pulling and conveying device and a root and leaf cutting device. The double-row seedling supporting and feeding device is fixed at the top end of the clamping, pulling and conveying device; the excavating device is fixed at the bottom of the top end of the clamping, pulling and conveying device; the digging device is positioned below the double-row seedling supporting and feeding device; the double-wheel depth limiting device is fixed to the front end of the clamping, pulling and conveying deviceand located behind the double-row seedling supporting and feeding device, the root and leaf cutting device is fixed to the bottom of the rear end in the clamping, pulling and conveying device, the clamping, pulling and conveying device is arranged on one side of the rack, and the rack is fixed to the supporting face of the crawler walking chassis. The carrot harvester achieves harvesting of high-density planted carrots in one ridge and two rows, and is compact in structure, small in size, flexible and convenient to use and high in operation efficiency.