The invention relates to glutinous rice flour with blood pressure-reducing, blood fat-reducing and cholesterol-reducing effects and a preparation method thereof. The glutinous rice flour is prepared from the following raw materials in parts by weight: 70-75 parts of glutinous rice, 3-4 parts of buckwheat, 4-5 parts of oat, 3-4 parts of semen sesami nigrum, 2-3 parts of soybeans, 1-2 parts of semen coicis, 4-5 parts of semen juglandis, 1-2 parts of phlomis mongolica, 2-3 parts of corn stigma, 4-5 parts of pumpkin peel, 1-2 parts of garlic, 2-3 parts of folium mori, 3-4 parts of broadleaf holly leaves, 2-3 parts of spina date seeds and 2-3 parts of gynostemma pentaphylla. The glutinous rice flour provided by the invention is flexible, tough and smooth and glutinous and tasty, and has the effects of reducing blood pressure, blood fat and cholesterol.