Based on extraction of alteration information from remote sensing data and field anomaly examination, the authors found for the first time a porphyry copper deposit at Xiongmei Township of Xainza County in the middle segment of Bangonghu-Nujiang suture zone. The copper mineralization is composed of malachitized granodioritic porphyry and devitrified dacite. The discovery of the Xiongmei porphyry copper deposit suggests that a porphyry copper belt does exist along Bangonghu-Nujiang suture zone.