The invention discloses a making method of chili oil for spicy chicken nuggets. The making method comprises the following steps of S1, preparing chili semi-finished products: stir-frying 5 parts of oil and 100 parts of dry chili in weight ratio, and crushing the stir-fried dry chili; S2, preparing oil material semi-finished products: heating oil, and then cooling the heated oil; S3, preparing red oil: mixing 10-12 parts of the chili semi-finished products with 90-100 parts of the oil material semi-finished products in the weight ratio, and then performing refining; and S4, performing refining to obtain the chili oil: mixing the 10-12 parts of the chili semi-finished products with 80-100 parts of the oil material semi-finished products, 3-5 parts of the red oil, 0.8 part of Chinese prickly ash and 0.8-1.2 parts of spices in the weight ratio, and performing refining. The chili oil prepared by the making method disclosed by the invention is glittering and translucent in color, golden red in color, spicy rather than pungent in taste, and rich in taste layers; in the process of making the chili oil, the refining step of the chili and the oil is sequentially performed twice, so that the situation of obtaining buffering once when the chili enters the oil is guaranteed, peppery taste is uniformly dispersed into the chili oil, the taste is more layered, the chili has higher saturation degree, other substances are not liable to merge into the chili, and the chili can be preserved for a long term.