The invention discloses a non-flotation mineral processing method for magnetite-hematite mixed iron ore. The process adopted is as follows: carrying out first-stage grinding on magnetite-hematite mixed iron ore, and carrying out low-intensity magnetic rough separation and low-intensity magnetic fine selection on the first-stage grinding product to obtain low-intensity magnetic separation iron concentrate C1; carrying out primary high-intensity magnetic separation on the low-intensity magnetic rough separation tailings, discharging primary high-intensity magnetic separation concentrate, and discarding primary high-intensity magnetic separation tailings T1; combining the primary high-intensity magnetic separation concentrate and the low-intensity magnetic fine separation tailings, carrying out spiral chute gravity separation, discharging spiral chute gravity separation tailings, and obtaining spiral chute gravity separation iron concentrate C2; and carrying out second-stage grinding on the spiral chute gravity separation tailings, carrying out secondary high-intensity magnetic separation on the second-stage grinding product to obtain secondary high-intensity magnetic separation ironconcentrate C3, and discarding secondary high-intensity magnetic separation tailings T2. The non-flotation mineral processing method for magnetite-hematite mixed iron ore has the advantages of high recovery rate of iron concentrate, less second-stage regrinding, energy saving and consumption reducing, environment friendliness, simple process flow and structure, stable index, easy on-site operationand management, and the like.