The present invention discloses a baking resistant jelly slurry liquid and a preparation method and an application thereof. The baking resistant jelly slurry liquid comprises the following components: 39%-60% of sweetener, 15.33%-25% of thickener, 0.25%-2.03% of emulsifier, 0-10% of oil, 0-5% of milk powder, 0-5% of fruit juice concentrate, 0.1%-0.5% of acidity regulator, 0-0.08% of preservative, 0-0.005% of edible coloring matter and 0-0.1% of edible flavor. The aforementioned ingredients are mixed evenly to obtain the baking resistant slurry liquid. The jelly prepared by the baking resistant jelly slurry liquid is good in shaping after a high temperature baking, does not contract, crack or foam, has a good adhesion with bread, cakes, biscuits, etc. The finished products will not be separated due to carrying and bumping during the storage and sales processes. Thus the baking resistant jelly slurry liquid can be used in the preparation of the baking resistant jelly snacks.