Absract: Under guidance of the Porphyrite Iron Deposit Model and the metallogeny theory of the large-scale ore concentrated area, we carry systematic researches on the metallogenic characteristics and the regularity. The Nihe iron deposit is founded by the exploration drilling to the magnetic anomaly after the 1:10000 geomagnetic survey on the overlap region between the 1:50000 aeromagnetic anomaly and 1:50000 gravity anomaly. The finding of the Nihe iron deposit is one of the significant discoveries in the middle-lower reaches of the Yangtze river in recent 20 years. Results of exploration shows that the Nihe iron deposit is a combined deposite consist of one large-scale magnetite ore deposit, one large-scale magnetite-pyrite ore deposit and one medium-scale anhydrite ore deposit. The host rocks of the deposit, which have intensive alteration, are volcanoclastic rocks and diorite porphyrite in the lower segment of the Zhuanqiao formation upper Jurassic. The ore bodies are controlled by the doming of the diorite porphyrite intrusion. The Nihe iron deposit is genetically classified into the Porphyrite Iron Deposit. According to the mineral-Forming conditions and the aeromagnetic- gravity anomaly, the Luzong area is benefit for the further exploration. The southeastern region of the Nihe deposit, the region between the Nihe and Luohe deposit and Fanmushan-Yijinqiao region are the important regions for the iron exploration in the future.