The invention discloses a manganese composite filter material and a manufacturing method thereof. The filter material comprises the following materials in percentage by mass: 97.6 percent of refined quartz ore sand containing over 99 percent of silicon dioxide, 0.65 percent of potassium permanganate, 0.97 percent of manganese sulfate and the balance of dissolved oxygen water. The manufacturing method for the filter material comprises the following steps: mixing the refined quartz ore sand containing over 99 percent of silicon dioxide, the manganese sulfate, the potassium permanganate and the dissolved oxygen water, and mechanically stirring and laminating the mixture to form the manganese composite filter material, wherein in preparing 1,000 mass part of manganese composite filter material, the components comprise 976 parts of refined quartz ore sand, 6.5 parts of potassium permanganate, 9.7 parts of manganese sulfate and the balance of dissolved oxygen water, and the stirring time iswithin 3 minutes. The filter material is applied to a secondary filter material in an iron-manganese removing secondary serial process for iron-manganese containing underground water under the condition of continuous oxygenation aeration and applied to a primary filter material of an iron-manganese removing device under the conditions that the iron content in the water is less than or equal to 5.0 milligrams per liter, the manganese content is less than 0.5 milligram per liter and the pH is more than 6.5; and the filtered water can reach the national drinking water standard.