The invention relates to a method for floatation of ilmenite in the Hongge mining area in the Panxi region, Sichuan province and belongs to the technical field of mineral processing. The method for floatation of ilmenite is capable of improving the quality and yield of ilmenite concentrate. The method comprises the steps of flotation pulp preparation, wherein magnetic separation is conducted on iron tailings to obtain magnetic concentrate according to which the grade of TiO2 is 18-25% and the grade of TFe is 15-23%, and then the preparing flotation pulp with a concentration of 40-55% is obtained through concentration; sulfur floatation, wherein the PH value of the flotation pulp is adjusted to be 3.5-4.5 by adding acid, and xanthate and foaming agents are also added for sulfur floatation; titanium floatation, wherein sulfuric acid, titanium floatation collecting agents, diesel and sodium fluosilicate are added for flotation through one-roughing, one-scavenging and four-refining processes to obtain ilmenite concentrate. When ilmenite floatation is conducted in a bi-acid environment, restraint of gangue minerals is facilitated, acid pickling of minerals is achieved, regime of agents is simplified, the number of influence factors of floatation is reduced, stable production is promoted, the quality and yield of ilmenite concentrate are improved, production cost is reduced, and labor intensity is relieved.