The invention discloses lily jelly and a processing technique thereof and belongs to the technical field of food processing. The processing technique includes: using tap water to clean fresh lily flakes, using a mixed solution of sodium iso VC/citric acid/sodium chloride for ultrasonic color protection, draining, steaming with boiling water, mixing with distilled water, and pulping to obtain lily pulp; dry-mixing compound gelatine powder and white granulated sugar, pouring into distilled water, and stirring well to obtain sugar-gelatin liquid; well mixing the sugar-gelatin liquid with the lily pulp, boiling, and sequentially adding potassium chloride, sodium citrate and citric acid while stirring to obtain mixed liquid; pouring the mixed liquid while it is hot into a die, sterilizing, and putting into a refrigerator for refrigeration to solidification to obtain the lily jelly. Nutritional ingredients of lily are retained to greatest extent, the lily jelly has good taste, a new idea is provided for deep processing of Lanzhou lily products, types of lily products are enriched, and added value of lily is increased.