The invention relates to an optimization method for a pressing process of folium isatidis mouth decoction pieces, which can overcome the defects of leaf medicinal materials in production, transportation and application, and can be used for preparing the folium isatidis mouth decoction pieces by taking a single-factor test as a basis, combining a Box-Behnken design-response surface method and taking
indirubin, tryptanthrin,
isovitexin and water-soluble extracts as comprehensive evaluation indexes. Four factors including pressing time, pressure, baking temperature and baking time are investigated, an
analytic hierarchy process and an
entropy weight method are utilized to calculate weight coefficients and comprehensive scores of all indexes to determine the optimal pressing process of the folium isatidis mouth decoction pieces, and the optimal pressing process is close to a predicted value of a result obtained by actual operation, which shows that the
process optimization method is good in
predictability and high in practicability. The technology is stable and feasible, actual production can be directly guided, the problems of fuzzy technological parameters, large decoction piece quality fluctuation and the like in production are solved, key technical reference can be provided for standardized formulation of the folium isatidis mouth decoction piece pressing technology, and the practical application and popularization value is achieved.