After returning to China in 1951, He joined Department of Electrical Engineering of Tangshan Institute of Technology (now Southwest Jiaotong University), where he became the dean of department later.
Cao Cao | Cao Wei | Pierre Cao | Cao Zhen | Cao Rui | Cao Đài | Văn Cao | Nguyen Cao Ky | Joseph Cao | Cao Xiu | Cao Gangchuan | Cao Bằng Province | Cao Yunding | Cao Ying | Cao Xueqin | Cao Pi | Cao Hamburger | Cao Fang | Terence Cao | Nguyễn Cao Kỳ | Nam Cao | Madame Nguyen Cao Ky | Lý Cao Tông | Huynh Van Cao | Empress Zhen (Cao Fang) | Do Cao Tri | Diogo Cão | Cao Zhi | Cao Zheng | Cao Yi'ou |