It is very difficult for Nanjing Agricultural University to take the postgraduate entrance examination. Postgraduate entrance examination depends largely on one's academic thinking ability, professional knowledge, preparation strategies and mentality. The difficulty of postgraduate entrance examination is mainly the region, reputation and ranking of the enrollment unit, because the candidates come from different sources. Nanjing Agricultural University is a key university located in Nanjing, Jiangsu Province, which is jointly established by the Ministry of Education and the People's Government of Jiangsu Province. This university has the advantages and characteristics of agriculture and life sciences, and has the coordinated development of agriculture, science, economics, management, engineering, literature and law. Nanjing Agricultural University is not only a national "double-class" and "2 1 1 project". It has also been selected into many important national and Ministry of Education plans and projects such as "11plan" and "20 1 1 plan", which shows its strength and influence in teaching and scientific research.