The invention relates to a konjac processing process, which comprises the steps of: 1, raw material sorting;2, soaking; 3, cleaning, peeling and bud and root removal; 4, slicing; 5, color fixing; 6, drying; 7, sorting and grading; 8, crushing and grinding; 9, separating and sieving and 10, inspection and package. The konjac flour prepared by the process provided by the invention has the advantages of high purity, high viscosity, high transparency and low SO2 content, and the prepared konjac vermicelli has the advantages that the flavor is good, the food mouth feeling is good, and the nutritional value is high.