The global Agri-Food Systems：AFS) are facing unprecedented challenges. In the past century, the technological and institutional innovation of agricultural food system has brought great progress to global human welfare, but at the same time it has also brought huge negative spillover effects to climate, natural environment, public health and nutrition safety, and social justice, which has led to the unsustainability of global food system and seriously threatened global sustainable development. Sustainable development goals (SDGs) advocated by the United Nations to achieve 17 sustainable development goals in 2030 are facing severe challenges that are difficult to achieve systematically because they emphasize the division of single goals. How to realize the transformation of agricultural food system through collaborative innovation, so as to maintain and expand the achievements accumulated in the past and build a healthier and safer sustainable food system to serve the new needs of the increasing population on the earth in the future has become the most urgent strategic goal in the world.

　　Professor Fan Shenggen, Dean of the Institute of Global Food Economics and Policy of our school, former director of the International Institute of Food Policy (IFPRI), Professor Shen Jianbo from the College of Resources and Environment and the Institute of Agricultural Green Development, as members of the expert group, Participated in the Cornell Atkinson Center for Sustainability–Nature Sustainability Expert Panel. On December 10th, the expert group published an opinion review article "Integrating socio-economic and technological innovation to promote the transformation of agricultural food system: bundling innovations to transform agri-food systems" on Nature Sustainability online (https://doi.org/10.1038/s41893-020-00661-8); At the same time, the expert panel report "Socio-technical innovation bundles for agri-food systems transformation" is published in full.（https://www.nature.com/documents/Bundles_agrifood_transformation. pdf）。 The article emphasizes that technological progress should be combined with social, cultural and policy changes to promote the transformation of agricultural food system in order to meet the urgent climate, economy, environment, health and social challenges. The international expert group reported how to combine innovations that can balance multiple goals and promote the healthy development of sustainable food systems.

　　This paper further analyzes the current situation of global AFS and the key driving factors and lessons of AFS changes in the next 25-50 years. From the overall situation of COVID-19 epidemic in Covid-19 this year, considering the costs paid by farmers and downstream value chain participants in the food system and the prices paid by consumers, plus adverse environmental, health and social spillover effects, as well as the inevitable demographic, economic and climate changes in the future, these problems will catastrophically aggravate global food under business as usual. The group systematically analyzed the priority areas of technological innovation and put forward a "HERS" model for future development, so as to make the future agricultural food system Healthy, fairer, more Resilient and more Sustainable. The expert group put forward seven actions to guide the sustainable development of agricultural food system in the future, and the priority innovation areas of agricultural technology.

　　The small science and technology institute model (STB) established by Academician Zhang Fusuo of China Agricultural University has become a typical case of combining technological progress with social, cultural and policy changes in this report. Academician Zhang Fusuo and Associate Professor Jiao Xiaoqiang participated in the suggestions and guidance of relevant contents.

　　The Global Expert Group on Agro-food Systems has 23 members:

　　Panel Members：Barrett (Cornell University), Tim Benton(Chatham House and University of Leeds), Jessica Fanzo (Johns Hopkins University), Mario Herrero (Commonwealth Scientific and Industrial Research Organisation) and Rebecca J. Nelson (Cornell University), with Edward Buckler (US Department of Agriculture Agricultural Research Service), Karen A. Cooper (Societé des Produits Nestlé SA), Karrie Denniston (Walmart. org), Shenggen Fan (China Agricultural University), Rikin Gandhi (Digital Green), Isatou Jallow (Africa Catalysing Action for Nutrition Network), Steven James (PepsiCo), Mark Kahn (Omnivore), Laté Lawson-Lartego (OXFAM America), Alexander Mathys (ETH Zurich), Andrew G. Mude (African Development Bank), Felix Preston (Generation Investment Management), Howard Yana-Shapiro (Mars, Inc.), Jianbo Shen (China Agricultural University), Lindiwe M. Sibanda (University of Pretoria), Roy Steiner (Rockefeller Foundation), Philip Thornton (International Livestock Research Institute) and Stephen Wood (The Nature Conservancy).

　　Attachment link:

　　1.https://www.nature.com/articles/s41893-020-00661-8；

　　2.https://blogs.cornell.edu/nature-sustainability/

　　3.https://www.nature.com/documents/Bundles_agrifood_transformation.pdf

　　Information sources: Institute of Global Food Economy and Policy of China Agricultural University, College of Resources and Environment of China Agricultural University, National Institute of Green Development and FASE Journal of China Academy of Engineering.

　　Editor in charge: Jiang Pingping