On the base of the national copper reserves data up to the end of 1999, the authors have studied the distribution characters of the copper grade-tonnage model of various metallogenic types and concluded that the porphyry copper deposits of China are characterized by a fractal distribution. Based on researches of the copper grade-tonnage model, the authors have integrated the MARKS method to the Mineral Resource Appraisal System (MRAS), and calculated the various types of copper resource.