Abstract: Abstract：The Yaojiaoling copper lead-zinc deposit in the Tongling ore deposit concentration area of the middle-lower Yangtze River Valley metallogenic belt is a large polymetallic deposit discovered in recent years during mineral reconnaissance. The ore deposit type is considered as an epithermal filling replacement-porphyry deposit related to the intrusion of the late Yanshanian cryptoexplosive porphyry, which is very different from two traditional mineralization models——skarn type and modified stratabound type——in this area. This discovery accounts for the diversity and complexity of the mineralization in the area and has great guiding significance for mineral exploration at depths in the Tongling ore deposit concentration area and even in the middle and lower Yangtze River Valley.