The invention provides a method for preparing a sweet orange flavor for cigarettes. The method comprises the following steps: separating sweet orange peels from sweet orange pulp, squeezing the sweet orange pulp, extracting the sweet orange peels, and squeezing the extracted sweet orange peels to obtain sweet organic crude oil and sweet orange pomace; extracting the sweet orange crude oil by using ethanol, centrifuging the extracted sweet orange crude oil to obtain a sweet orange essential oil ethanol solution, and adding a propylene glycol solution to obtain sweet orange essential oil; extracting the sweet orange pomace by using ultrasonic waves to obtain an extracting solution a, adding sodium dihydrogen phosphate honey, sweet orange juice and apple vinegar into the extracting solution a in sequence, uniformly mixing the materials, and fermenting the mixture; extracting a fermentation product, and concentrating the extracted fermentation product to obtain a sweet orange pomace extract; and mixing the sweet orange essential oil and the sweet orange pomace extract, filtering a mixed extracting solution, adding D-sorbitol linalool oxide into a filtrate, and uniformly stirring the filtrate to obtain the sweet orange flavor for the cigarettes. By adopting the method, the utilization ratio of sweet oranges is increased; moreover, the preparation method is simple; and the prepared sweet orange flavor for the cigarettes is strong and real in fragrance, has an ideal application effect in the cigarettes, and has very high practicability.