 Northwest Agricultural University has the biggest area and the longest history out of 7 members and are the origin of Institute of Water Resource Sciences (Northwest China) and Northwest Forestry College.Her history can be dated back to 1934(Year 23 in Minguo calendar) when National Northwest Senior College of Agriculture and Forestry (the predecessor of Northwest Agricultural University) was founded by the Senior Politician of Kuomintang Mr. Yu Youren, Kuomintang veteran member Dai Jitao, Kuomintang General Yang Hucheng .In 1937 and 1938, the Senior College merged with College of Agriculture of National Northwest Associated University and Department of Animal Husbandry in College of Agriculture of National Henan University () respectively, then was renamed as National Northwest Agricultural College.Meanwhile, Department of Water Conservancy of National Lanzhou University () joined the College.