according to analyzing and summarizing the literature of ilmenite concentrate smelting titanium slag, comes to conclude: the production process of ilmenite concentrate smelting titanium slag can be divided into the one-step method and two-step method, dominated by two-step method at home; foreign dominated by two-step. This paper introduces the main content of one-step method and two-step method, and compares the two methods from aspects of technology, quality, cost and environmental protection, and finally summarizes it.