The TAGRM 4LZ-1.2 wheeled combine harvester is a modified version based on the 4LZ-1.2 crawler type combine harvester. Except the walking system is wheeled, other performance parameters are basically the same as the crawler type. The advantage of the wheeled combine harvester is that it can work better in dry fields and even walk on ordinary roads, which saves the time and cost of transfer, and the maintenance of the wheeled type is more convenient.