This paper explores application of Pro/ ENGINEER three-dimension technology in agricultural machinery design, introduces functions such as accessory, assemble and two-dimensions engineering drawing and so on in Pro/ ENGNEER design condition which is a three-dimensions CAD/ CAM/ CAE integra-tive design software. 探讨了三维软件在农业机械设计上的应用,介绍了在三维CAD/CAM/CAE集成化设计软件Pro/ENGNEER环境中零件、装配和二维工程图的产生和其他功能。