To make rational policy system advancing the development of green agriculture, we firstly need to have a scientific grasp of the current regional development level of green agriculture in China. In view of this, the principal component analysis is used to calculate the development level of green agriculture in China’s 31 provinces based on index system, which including utilization intensity of agricultural material as well as utilization efficiency. The research shows that, the green agriculture development level of Guizhou, Qinghai, Tibet, Ningxia, Shaanxi ranks the national top five; Hainan, Fujian, Zhejiang, Shandong, Liaoning ranks the last five. On this basis, we establish the comprehensive evaluation matrix of green agriculture and have the 31 regions clustering. Then we get the results that Shaanxi and other 2 provinces are “high level - high efficiency” areas; 10 provinces including Guizhou, Tibet, Qinghai belong to the regions of “high level - low efficiency”; Henan, Hubei, Hebei and other 10 provinces are “low level - high efficiency” regions; Jiangxi, Yunnan and other 3 provinces are “low level - low efficiency” regions.