The invention discloses a raw material formula of the lemon lozenge and a preparation process thereof. The raw material formula comprises the following raw materials: lemon powder or lemon concentrated solution, excellent powdered sugar or xyllitol, glycyrrhizin, starch, one or more of lemon yellow or sunset yellow and lemon oil. The lemon lozenge solves the problem that the lemon is peracid and diet and cannot be directly eaten, and solves the technical problems for directly performing the fruit powder. The lemon lozenge has the advantages of effective biological activity and easy absorption, and maintains a great amount of nutrients and Vc of the lemon. The product is also a leisure product with low calorie and functions, not only maintains the original unique flavor of the lemon, but also maintains the biological activity and the unique pharmaceutical value of the lemon. The product is rich in vitamins, organic acid, limonoid, flavonoid and hemiterpene substances, can moisten the throat, and can diminish the inflammation. Organic acid can resist the fatigue, activate the blood vessel, and can promote the digestion of the human body, and also has the auxiliary functions for clearing the intestines and stomach, reducing the cholesterol, improving the appetite, and the like.