The invention provides a formulation and preparation method of a dietary fiber type inhalable jelly functional drink. Every 100 g of the inhalable jelly drink is prepared from, by weight, 46-54 mg of potassium chloride, 23-27 mg of locust bean gum, 148-172 mg of gellan gum, 23-27 mg of xanthan gum, 12-14 g of isomerized sugar F-55, 0.9-1.1 mg of trisodium citrate, 3.4-4.0 g of galactomannan, 132-154 mg of apple juice concentrate, 180-209 mg of citric acid, 185-215 mg of calcium lactate, 98-114 mg of spice, 19-22 mg of emulsifier D-E-H and the balance water. The preparation method includes the steps of preparation of gel and preparation of the inhalable jelly drink. Dietary fibers and jelly are mixed together to prepare the dietary fiber type inhalable jelly functional drink for the first time, the market of the jelly industry is widened, and the deficiency phenomenon of dietary fiber type functional products on the jelly market is avoided. The functional drink has the advantages of being wide in suitable crowds, high in nutritive value and capable of promoting health, and is dietary fiber enhanced functional jelly, a customer takes in the jelly gel and the galactomannan at the same time while water is replenished, and the jelly gel and the galactomannan collaboratively act to jointly exert the special effect of the product.