Production technology of dried codnopsis bulleyana root slices

The present invention discloses a production technology of dried codnopsis bulleyana root slices. The production technology comprises the following steps: raw material washing and raw material freezing treating. The production technology is characterized in that w step are characterized in that washed codnopsis bulleyana root slices are placed in an environment at -5 DEG C to be frozen for 6-8 hours, then the frozen codnopsis bulleyana root slices are slowly frozen at -16 DEG C to -18 DEG C for 12 hours or more, then the frozen codnopsis bulleyana root slices are soaked with accessory materials of white granulated sugar and citric acid, and the soaked codnopsis bulleyana root slices are baked to obtain the finished products. The slow freezing is used to produce ice crystals to destroy texture structures of the codnopsis bulleyana roots, then sucrose and citric acid are added to conduct soaking, an assisted ultrasonic treatment further damages the texture structures of the codnopsis bulleyana roots to improve penetration effects of sugar and acid, and baking and drying, starch gelatinizing, dehydrating and curing are conducted to obtain the dried codnopsis bulleyana root slices which are full and not wizened in appearance and shapes, moderate in sweetness and sourness, flexible in texture, light yellow, semi-translucent, and shiny and have a smell of the dried codnopsis bulleyana root slices.