Located in Tethys Himalayan sub-terrane, the Zhaxikang Pb-Zn-Ag-Sb polymetallic ore deposit is not only a representative ore deposit in the antimony-gold metallogenic belt but also among a few deposits that have reached large-scale reserves. The Zhaxikang deposit has abundant assemblages of ore minerals and gangue minerals with complex ore-forming process, which indicates that recognition of ore-formaing stages and periods is very important for the study of the ore-forming process and also of indication significance for the understanding of the regional metallogenic belt. Based on summarizing the previous cognitions of the mineralization process as well as mineral paragenetic assemblages and crosscutting relationship of ore veins, the authors formulated a model for 3- period, 6-stage and 13-sub-stage complex ore-forming process, which indicates that the metallogenic process of the Zhaxikang deposit resulted from superimposition and remobilization of several stages of ore fluids, and the later antimony-bearing fluid was superimposed upon and reconstructed the pre-existent lead-zinc ore body. The overprinting and remobilization process has universal meaning for the study of the regional metallogenic belt and suggests the potential of finding lead-zinc deposits in the Tethys Himalayan Sb-Au metallogenic belt.