The present invention relates to a method for manufacturing oat red pepper paste and oat red pepper paste manufactured by the same. According to the present invention, germinated oats are soaked in Leegangju (Korean liquor) instead of water. Content of dietary fiber and beta-glucan is increased by using filtered malt liquid, obtained by filtering malt with Leegangju, a clove extract extracted by using Leegangju, and a salted large-eyed herring. In addition, the oat red pepper paste has a reduced sugar content and thus can significantly contribute to weight loss and prevention of diabetes. The method for manufacturing oat red pepper paste decreases the sugar content and increases the product′s value by enhancing functionality such as taste and aroma. According to the present invention, the method for manufacturing oat red pepper paste comprises: 1) a first step of putting both glutinous rice powder, obtained by immersing and soaking germinated oats in Leegangju and picking up the germinated oats, and grinding the germinated oats with a blender, and filtered malt liquid, obtained by mixing malt powder with Leegangju and then filtering the same, in a pot; 2) a second step of heating the pot in which the glutinous rice powder and the filtered malt liquid are mixed in the first step, making the rice powder and the filtered malt liquid into a thick porridge by heating the pot and stirring the glutinous rice powder and the filtered malt liquid and cooling the porridge at room temperature; 3) a third step of making red pepper paste by inserting fermented soybean block powder into the thick porridge obtained in the second step, mixing the same, inserting red pepper powder into the same again, and mixing the same again; 4) a fourth step of adding the clove extract, extracted with Leegangju, to the red pepper paste made in the third step, mixing the same well, and then adjusting salinity by inserting salted large-eyed herring; and 5) a fifth step of adjusting the sugar content