The invention discloses pumpkin roll with qi-tonifying and spleen-reinforcing snap bean filling and a preparation method thereof. The pumpkin roll with qi-tonifying and spleen-reinforcing snap bean filling is made of the following raw materials in parts by weight: 3-4 parts of cucumber juice, 1-2 parts of lotus seed powder, 2-3 parts of purple eggplant powder, 10-12 parts of camellia oil, 5-6 parts of snap bean, 1-2 parts of white atractylodes rhizome, 1-2 parts of root of kudzuvine, 1-2 parts of lotus seeds, 200-210 parts of pumpkins, an appropriate amount of table salt solution, an appropriate amount of fresh lime, an appropriate amount of white crystal sugar, an appropriate amount of carrageenan, an appropriate amount of citric acid, an appropriate amount of of NaOH solution and an appropriate amount of water. According to the preparation method, the snap bean, the lotus seed powder and the purple eggplant powder are uniformly mixed; the cucumber juice is then added and mixed; the mixture is mashed into paste; and the paste is then fried in the camellia oil little by little. Matching of the snap bean, the lotus seed powder and the purple eggplant powder is rational; the pumpkin roll has balanced and various nutrition; the fried pumpkin roll has heavy aroma and relatively good flavor; the traditional Chinese medicines added therein have the functions of reinforcing the spleen, tonifying the qi, eliminating dampness and promoting diuresis; and the pumpkin roll blank is moderately toasted in the production process, so that the flavor of the pumpkin is relatively well retained.