Crawler walking type agricultural machine

The utility model relates to the technical field of agricultural equipment, in particular to a crawler walking type agricultural machine which comprises a crawler walking agricultural machine body, a cross beam arranged on the crawler walking agricultural machine body and a crawler arranged on the cross beam, a tensioning assembly is arranged on the cross beam, and the tensioning assembly comprises a left end supporting block and a right end supporting block which are symmetrical to each other. A bottom supporting plate is fixedly installed between the two end supporting blocks, a discharging hole is formed in a bottom plate body of the bottom supporting plate, a tensioning wheel is rotationally connected between the two end supporting blocks through a rotating shaft, the tensioning wheel abuts against the inner surface of an upper half belt body of the crawler belt, and protruding columns are fixedly installed on the top faces of the end supporting blocks. Studs penetrating through the cross beam are fixedly