The invention provides a corn product suitable for mixed cooking with other grains and a production method thereof and belongs to the field of corn processing. The production method of the corn product comprises the step that the corn product is mainly produced by processing corn kernels harvested within 30-35 days after corn plants are pollinated, wherein the moisture content of the corn kernels is 45-55%, and the starch content of the corn kernels is 50-60%. The method is simple in process and low in processing cost, and nutrient substance loss of corns can be avoided. The produced corn product is low in skin residue rate and has good state, rich nutritive value and rich special corn flavor and can be cooked with other grains.