The present invention provides a rubber half track walking device for a combine harvester, wherein the internal shaft seat assembly is matched with the receiving plate seat to form a support, and the joint bearing seat assembly is matched with the driving wheel shaft head to form a support; The driving wheel is installed above the trolley bracket through a bracket, and the guide wheel and supporting wheel are installed above the rubber track track at the lower part of the trolley bracket. The rubber track forms a triangle around the outside, and two guiding flanges protrude evenly on the inner surface of the rubber track. The longitudinal gap between the supporting wheel and the guiding wheel accommodates the guiding flange. There is a notch on the upper part of the guiding flange, and a driving pin shaft that is equidistant from the notch is welded on the corresponding position of the longitudinal outer circle of the driving wheel. The outer surface of the rubber track has an intermittent herringbone pattern. The double-sided support makes the entire walking device safer and more reliable. The guide wheel is arranged in the middle, and the supporting wheel is located inside the concave shape, which has a simple structure to prevent derailment, is easy to produce, has low manufacturing cost, and good shock absorption effect. Lightweight, with good anti sinking effect, energy-saving, strong flexibility, and high harvesting efficiency