Abstract: Based on the main problems existing in lowcarbon agriculture in China, this paper proposed that promoting the uses of 3R technologies (reduce, reuse and recycle) can effectively reduce the carbon emissions from agricultural production system. From the perspective of reducing carbon emissions, this paper discussed the contents of lowcarbon agriculture and the main problems of lowcarbon agricultural development; finally we proposed the technology paths of lowcarbon agricultural development and also constructed the support systems including the technologies and corresponding policies & systems．

Key words: carbon emissions, lowcarbon agriculture, technology paths, support system