As a kind of ore deposits with most important economic significance, the porphyry copper deposits possess more than half of the global copper reserves. Based on the metallogenic geological background of China’ s mainland, this paper systematically analyzes temporal and spatial distribution of porphyry copper deposits, highlights the genetic connection between secondary micro plate tectonics and porphyry copper deposits under the basic system of three metallogenic domains controlled by paleo-plate boundaries, puts forward the regionalization system of three metallogenic domains, seven metallogenic regions, and studies the intraplate mineralization with characteristics of China’s mainland by placing emphasis on continental margin accretion-inner continent anatexis".