Abstract: The Xincheng gold deposit has been mined for more than 20 years and the service life of its remaining ore tonnage decreases gradually, thus affecting the sustainable development of the mine.The discovery of blind orebody No. V demonstrates that the deep part of the deposit has favorable geological conditions for ore deposition and thus provides grounds for ore search in the second concentration zone at depths of the mine.This paper furnishes information of important reference value for the study of the metallogeny of gold deposits in Jiaodong and the direction in ore prospecting in the deep part of the deposit.