The progress in research on porphyry copper deposit is viewed, including the following five aspects: (1) It has been proved that porphyry copper deposit is related to oxidized-type granite magma. And some new symbol which can be used to determine the redox state of magmas have been established. (2) The contents and solubility of sulfur and chlorine in magma are very important to the mineralization of porphyry copper deposit. (3) It has been illustrated that the earlier reached the oversaturation of water during magmatism, the more advantageous for the mineralizatuon. (4) Mantale metasomatism and magma mixing plays an important role in the origin of the magma which relate to the deposit. (5) Some new kinds of alteration in the deposit, such as magnetite alteration facies and Na-Ca alteration, have been discovered and studied.