I believe its the badge of 1st Training Brigade of Harbin Flying Academy .The writing down there looks like 哈尔滨飞行学院第一训练旅. Also the slogan above "谋攻胜敌、勇为刀锋" belongs to this unit.
ps: The wing of the eagle in the middle is a stylized form of two Chinese characters "雄鹰“,which means heroic eagle.