The invention belongs to the field of chemical engineering and specifically relates to a recycling method for rutile processing wastewater. In order to solve the problems of low acid value, high impurity content and difficulty in removing and recycling of the wastewater generated from the preparation of the artificial rutile at present, the invention provides the recycling method for rutile processing wastewater. The method comprises the following steps: a) filtering and pre-concentrating the waste hydrochloric acid solution acquired in the hydrochloric acid-process preparation of the rutile, thereby acquiring the waste hydrochloric acid solution with the acid value within 120-150g/L; b) secondarily concentrating the waste hydrochloric acid solution acquired in the step a); c) spraying and roasting the waste hydrochloric acid solution acquired in the step b), thereby acquiring hydrogen chloride gas and solid ferric oxide, wherein the acid value means the sum of H<+>, Fe<2+> and Fe<3+>. According to the method provided by the invention, the high-grade ferric oxide powder can be acquired, no harmful matter is discharged in the whole process and the regenerated acid in higher concentration can be acquired. The method provided by the invention is simple and feasible in process, low in cost, free from environmental pollution and worthy of popularization and use.