The airborne INS/GNSS deep integrated navigation system which effectively improves the accuracy and reliability of airborne navigation and positioning， has received extensive attention in recent years. The concept and structure for INS/GNSS scalar and vector deep integrated navigation system is described first in this paper. Then， the status of airborne INS/GNSS deep integrated navigation system is analyzed and compared. In the end， the application and development of domestic related technologies are prospected.