Abstract: Promoting agricultural mechanization is a systematic project．It involves improvement of agricultural productivity, optimization of rural industrial structure, increase of farmers' income, and even process of agricultural modernization of whole country．It helps to promote development of agriculture in direction of green, high-end and sustainable．Problems in development of agricultural mechanization in Jilin Province were analyzed, such as structure of agricultural machinery, service system and technological innovation．Rationalization suggestions were proposed, such as strengthening technological research, optimizing products structure, strengthening quality supervision, strengthening personnel training, and increasing policy support．