Abstract: The agricultural technical potential and response measures adapted to CO_2 fertilization effect in the perspective of crop breeding,cultivation and farming systems under climate change were summarized.New theories and technologies should be comprehensively applied in crop breeding to improve the eco-physical characteristics of crops,so as to adapt to the elevated CO_2 concentration in the atmosphere;The following measures should be taken in farming systems to adapt the climate change: adjusting sowing period,changing cropping systems,adjusting crop distribution on dryland and irrigated land, and selecting C_3 or C_4 crop.Adjusting crop canopy temperature,improving irrigation conditions,maintaining water supply and nutrients in soil,and managing diseases,pests,weeds,and other extreme climate disasters should applied as comprehensive response measures in the perspective of crop cultivation.

Key words: Adaptation, Adaptation, CO_2 fertilization effect, Technical potential, Crop breeding, Crop cultivation, Farming system