Petrology, petrological chemistry and trace element characteristics of lamprophyre in the Denggezhuang and Jinqingding mining areas of Jiaodong shows that it belongs to barkevikite-plagioclase lamprophyric series, derived from the upper mantle. Lamprophyric veins, which mainly spread parallel to gold ore veins, might have provided some ore-forming materials and volatiles for gold mineralization. The characteristics of lamprophyre and its intimate connection with gold mineralization suggest that geologic activities related to gold mineralization took place not only in the crust but also in the upper mantle.