Abstract: The article analyzed the great achievements made in China's agriculture and put forward five requirements for agricultural structure readjustment, namely diversified demand of agro products, quality consumption of agro products, integrated trade, high efficiency agriculture and multi functions of agriculture. Attention should be payed to the adaptability, strategic, long term, arduous and dynamic nature of this restructuring process. Agricultural engineering should play a pivotal role in optimizing structure, extending production links, innovating technology, enhancing efficiency and firming up foundation.