The primary halos of porphyry copper deposits are characterized by compositional zoning inthree dimensions. Two ideal zoning patterns can be divided in accordance with the shape of pri-mary halos in space: bell-shaped and anticline-shaped. In the process of alteration-mineralization, K, Si, (OH), Fe, Cu, Mo, Ag, S, Ba, Rb, Pb,Zn, As, etc. were imported, while Na, Ca, Mg, Fe, Al, Ti, Mn, V, Co, Sr, Pb, Zn, etc. were ex-ported or became activated, and then transported and reprecipitated. Both import and export ofFe, Pb and Zn may have taken place. The fundamental factors controlling the zoning of primary halos are: the stability of comple-xes and the activity of elements; pH, Eh, the behaviour of sulfur and the sulphophile character ofelements; the concentration of components and the regularities of isomorphism; temperature andpressure; and tectonic setting and lithological characters of wallrocks. The authors consider that the zoning patterns of primary halos in porphyry copper depositsare the outcome of integrated effects of various factors. The primary halos of porphyry copper deposits are characterized by compositional zoning in three dimensions. Two ideal zoning patterns can be divided in accordance with the shape of pri-mary halos in space: bell-shaped and anticline-shaped. In the process of alteration-mineralization , K, Si, (OH), Fe, Cu, Mo, Ag, S, Ba, Rb, Pb, Zn, As, etc. were imported, while Na, Ca, Mg, Fe, Al, Ti, Mn, V , Co, Sr, Pb, Zn, etc. were ex-ported or became activated, and then transported and reprecipitated. Both import and export of Fe, Pb and Zn may have taken place. The fundamental factors controlling the zoning of primary halos are: the stability of comple-xes and the activity of elements; pH, Eh, the behavior of sulfur and the sulphophile character of elements; the concentration of components and the regularities of isomorphism; temperature and pressure; and tectonic setting and lithological characters of wallrocks. The authors consider that the zoning patterns of primary halos in porphyry copper deposits are the outcome of integrated effects of various factors.