The invention discloses edible printing ink with a mint smell. The printing oil is prepared from, by weight, 1-2 parts of catechu, 1-2 parts of astaxanthin, 0.5-1 part of vitamin C, 20-30 parts of starch, 5-10 parts of creeping oxalis extracting solution, 10-20 parts of food coloring, 20-30 pars of xanthan gum, 20-40 parts of hemp seed oil, 1-2 parts of mint oil, 20-40 parts of fructus momordicae extracting solution and 5-10 parts of water. The printing ink is prepared from the edible materials, no organic solvent is contained, green and environmental protection are achieved, no harm is generated to human health, the printing ink is free of smell of an organic solvent of previous printing ink, the smell is refreshing by adding the mint oil, the edible printing ink is good in fluidity and quick in drying, an antioxidant is added, the color is stable and does not fade after printing, and the edible printing ink with the mint smell can be used for printing industries of food, medicine, cosmetics, paper products and the like.