The invention discloses chili oil. The chili oil is prepared from the following raw materials in parts by weight: 60 to 80 parts of rapeseed oil, 30 to 40 parts of dry red chilies, 10 to 20 parts of fresh heartleaf houttuynia herb, 5 to 7 parts of pungent litse leaves, 4 to 6 parts of grosvenor momordica leaves, 4 to 8 parts of hawthorn fruits, 2 to 4 parts of white sesame, 1 to 3 parts of star anise, 1 to 2 parts of fennel, 1 to 3 parts of tsaoko amomum fruits, 5 to 7 parts of raw ginger, 4 to 6 parts of garlic, 2 to 3 parts of cassia bark, 6 to 8 parts of cumin, and 4 to 8 parts of table salt. The chili oil is long in shelf life, contains no additive or preservative, and is green and healthy. With the added heartleaf houttuynia herb and grosvenor momordica leaves, the chili oil not onlyhas a smooth and viscous mouth feel, but also has the functions of clearing away heat, removing toxicity, benefiting qi and moistening the lung. The chili oil of the invention is thick and mellow in taste, delicate in mouth feel, rich in nutrients and unique in flavor, not only can be used as a seasoning for blended vegetables, but also can replace edible oil used for stir-frying vegetables, and can be taken by eaters as needed so as to be convenient and time-saving.