As air traffic continues to grow, problems such as airspace congestion, resource shortages, and flight delays have become more and more serious. In order to improve the efficiency of the terminal area under the existing operating environment, a comprehensive evaluation index of the arrival efficiency of terminal area combined the horizontal dimension and the vertical dimension is proposed in this paper. Taking Tianjin Binhai International Airport as an example, the arrival efficiency of terminal area is analyzed based on the track data, so as to evaluate the short-term improvement potential of the airport. It is found that the overall arrival efficiency of the Tianjin Airport terminal area is low. The arrival efficiency of flights in different arrival directions is different. During the flight descent, there are more level flights, and the larger vertical deviation and longer extra time are caused. It is also found that there is a certain correlation between the efficiency evaluation indexes of horizontal dimension and vertical dimension, and with the extra time increases, the vertical deviation will increase accordingly. The extra time and vertical deviation can be reduced by better following the best performance profile, thereby the efficiency of the Tianjin Airport terminal area can be improved.