Study on the export value fluctuation of China agricultural mechanical products (AMP) by the ratio of export price to import price and the trade condition index and quality analysis index were conducted. The conclusion indicates that the ratio of export price to import price of the AMP almost keeps stable and trade condition indexes of all products are declined in different degree. The long-term quality indexes of these products are improved and they are gas engine, farm vehicle, electrical machinery and farm vehicle and tractor accessory. The trade condition index of irrigation machinery is also improved. The short-term quality indexes of 8 kinds of agricultural mechanical products are improved, and most of them are the leading exports. AMP exports have been improved in quantity, while not in quality. It advised that agricultural mechanical producing should focus on technology innovation, quality improvement and inhibiting mutual price competition badly.