Through analysis on deposit characteristics and geochamical characteristics of Dazhuangzi gold deposit in Pingdu city, characteristics of structural superimposed halos in this mine area are discussed. Dazhuangzi gold deposit has the characteristics of multipleperiodic superimposed oreforming and various forms of overlay. According to the characteristics of superimposed halos, ideal model of second concentration belt predication and structural superimposed halos in deep part of Dazhuangzi gold deposit has been established. Prospecting criterias of blind ore mining and predicated signs in deep part of this deposit have been identified, and has achieved good ore prospecting effects.