Saint John's University
Chang finished his secondary education at the Saint John's School (a middle school afflicted to the Saint John's University) in Shanghai. Chang at beginning studied agricultural science at the Saint John's University in Shanghai, which was his father's alma mater. After about one year, Chang transferred to the University of Nanking in Nanjing and majored in agriculture and horticulture. Chang graduated from University of Nanking with BSA in 1949.