Prince Lanling, who is famous of the Battle of Mangshan, was an important general in the late Northern Qi Dynasty. The song, Lanling defeated enemy, which described his heroic, was passed from generation to generation.Prince Lanling was described as a ever-victorious, considerate general in many folklore and historians’ thesis.But the author don’t agree with that.Through the analysis of historical datas, the author conclude that Prince Lanling, wasn’t a military elite but with some military abilities. His rise was manipulated by the loyal family to protect the central state power from being grabbed by other nobilities. Prince Lanling, who has both Han and Xianbei national characteristics, had exactly adapted to the trend of that time which was in the process of national amalgamation. The Song of Lanling defeated enemy, was sung and accepted by the two naions, which has propelled him in a further way. The strengthened central state power and the national conflicts,have resulted in his tragic fate inevitably.