The model of bulldozer adopts the energy efficiency improved, low-pollution, high-efficiency and low-consumption DFH-LR6105 diesel engine, which is manufactured by using the British Ricardo Consulting Engineers. and is big in its power, low in its noise and reliable in its operation. It adopts an overall car-type bogie traction structure which has a rigid chassis and a semi-rigid suspension. The bulldozer adopts the advanced technology of full hydraulic power-assisted steering working mechanism. It adopts broad delta section tracks which are featured with low specific ground pressure and strong adhesive power, so its working efficiency in wetlands, swamps, sandy zones and the like is fairly high. The driver’s cab is welded from formed steel, which is good in strength and highly impact resistant. The bulldozer has an instrument mechanism to provide system warning and automatically remind the driver of the failures. The complete machine is desirable in its power economy, high reliability, sound structure, and convenient in repair and maintenance.