Agricultural production is closely related to global climate change. Agriculture is the second important greenhouse gas source. However, global climate change has influenced the development of agriculture. Facing the global warming, as the foundation of the national economy, agriculture should contribute in energy saving and emission reduction. By studying the necessity for the development of low carbon in agriculture, this paper puts forward the research field, possible approaches and development mechanism to respond low-carbon economy. The paper aims to provide scientific decision-making, promotes modern agriculture by transferring high carbon economy to a low-carbon economy, and realizes the sustainable development of agriculture.