Being a new branch of sciences, geochemical engineering has the following basic characteristics: with the systematology as the guidance, the environmental problem and its harnessing and protection are considered in the natural geochemical system; on the basis of geochemical principle and regularity, the properties of the discarded substance and the discarded natural materials are fully utilized to develop the salvage technology; technological designing is combined with natural conditions and natural geochemical actions so as to reduce the cost and raise the benefit. The improvement and popularization of the geochemical engineering in the direction of industrialization should gain the vigorous support from the government and the industrial circle.