The half track walking device of the combine harvester belongs to the track assembly for agricultural machinery, which is composed of track driving wheels, supporting wheels, tensioning wheels, rubber tracks and walking brackets. The driving wheels are fixedly connected to the driving motor, and the front tensioning wheel, rear tensioning wheel and driving wheel are supported by the walking bracket on the same vertical plane in a triangular shape. The supporting wheel is connected below the track at the bottom of the walking bracket, and the rubber track surrounds the driving wheel, front tensioning wheel, rear tensioning wheel and supporting wheel. After the above technical improvements, this utility model has achieved the following beneficial effects: simple structure, easy production, low manufacturing cost, good shock absorption effect, lightweight quality, good anti sinking effect, energy saving, strong flexibility, high harvesting efficiency