Ferriheme and preparation method thereof

The invention provides ferriheme and a preparation method thereof and relates to the technical field of separation and purification. The preparation method comprises centrifuging a urea solution containing dissolved dried blood, collecting a centrifugal supernatant solution, adjusting pH of the centrifugal supernatant solution to 1.5-2.5, mixing the centrifugal supernatant solution and a surfactant so that the surfactant is dissolved and a mixed solution is obtained, heating the mixed solution to 90-100 DEG C so that purple crystals are precipitated, and carrying out solid-liquid separation after cooling crystallization. The preparation method has the advantages of simple processes, high yield, low cost and large industrial production prospect.