Abstract: Based on the geological development history of Xiaoginling district, Taihua group is considered the possible source bed of ore-forming materials of Xiaoqinling gold deposits, The concentration changes of trace elements of rocks and/or ore throughout migmatitization, granitization, alteration and mineralization show that the changes of Au concentration is inaccordane with that of other ore-forming materials such as Pb, Cu, Ag, Zn, etc. all the time。It suggests that the ore-forming materials come from Taihua group.Furthermore, isotopic data also show the ore-forming materials come from Taihua group.