The invention discloses a cantilever type flue-cured tobacco farming device which comprises a crawler-type carrying vehicle and a hydraulic telescopic cantilever, wherein guide rails arranged below the cantilever are sequentially connected to form an integral track in a front and back mode, and a self-walking farming machine head is arranged on the integral track and hung on the guide rails to perform reciprocating movement with a diesel engine serving as a power source through two sets of self-walking wheels matched with the guide rails to drive farming machinery below the farming machine to perform corresponding operation. By utilizing the cantilever type flue-cured tobacco farming device to perform farming, the land hardness caused by mechanical farming is reduced to the minimum extent, soil bulk density is reduced, and surface soil is distributed evenly. Ploughing operation is even, ploughing and ridging line spacing and depths can be adjusted, furrows obtained in ridging operation are smooth, no extrusion and cutting press effect is applied to ridges, and the utilization rate of soil blocks at corners is increased. Compared with traditional machinery, the cantilever type flue-cured tobacco farming device has outstanding advantages in aspects of farming cost, work efficiency, labor intensity, farming quality, soil protection and the like.