In order to further study the effect of heat moisture treatment on the edible quality of sweet potato vermicelli, on the basis of previous research, the breakage rate (BR), resistance to extension (RTE) and digestibility of vermicelli [rapid digestible starch (RDS), slowly digestible starch (SDS), and resistant starch (RS)] content were used as the quality evaluation indicators of vermicelli. The single factor test and the Box-Behnken test design model in the response surface method were used to optimize the heat moisture treatment conditions o...