Abstract: The Bamaoshan and Niutoushan copper deposits in Zongyang, Anhui are hosted in the Mesozoic igneous rock series, which are built up of a complete sequence of intrusive rocks, subvolcanic rocks and volcanic rocks. The copper deposits may be grouped into two types:the volcanic-exhalative-sedimentary copper deposit and porphyry copper deposit. The volcanic-exhalative, hot spring and volcanic hydrothermal sediments were accumulated at the bottom of lakes during the early mineralization. The intrusion of subvolcanic rocks and long-term hydrothermal activity led to formation of the porphyry-related copper deposits in the extensional-dominated accommodation spaces.