The discovery of good-sized porphyry copper-gold deposit in No.5 granite, it has important directive significance to look for this type Cu-Au deposit in the area. There are large-scale and high intensity IP-anomaly and negative ground magnetic-anomaly over No.5 granite, IP-anomaly is important sign for looking for this type Cu-Au deposit. Based on using for reference No.5 granite “three essentials to one body” looking for deposit model, penman applies integrated geophysical method to evaluate No.X granite prospect of looking for deposit, believes that No.X granite IP-3 anomaly caused by deposit, it has important meaning in looking for porphyry copper-gold deposit and points out the direction of looking for this type deposit next step.