Abstract:The Yangla copper deposit is one of the most important copper deposits, which locates in the central part of the Jinshajiang metallogenic belt. The ore bodies were strictly controlled by structure. It has become an effective means of ore prospecting prediction to study the structural characteristics and summarize the regularity of ore-controlling structure. In this paper, the 3,175m level tunnel of Yangla Cu deposit was investigated and described in detail for its structure (faults and joints). According to the results of this study, the Yangla copper deposit has undergone four stage structure activities. Since the nearly SN structure belt →Early NE structure belt →Late NE structure belt →NW structure belt, which corresponded to Hercynian, Indo-China, Yanshanian and Himalayan respectively, and the ore-related structures are early NE structure belt in Indo-Chinese Epoch. Three prospecting prediction target area were proposed in this paper which based on the metallogenic geological setting and the regularity of ore-controlling structures: northwest of No.28 # prospecting line, west of No.10 # prospecting line, west of No. 11 # prospecting line.