The invention discloses a production method of instant burdock flavor powder, belonging to the filed of food. The invention uses fresh burdock as a main raw material and maltodextrin, sucrose, milk, cocoa powder, fruit and vegetable and the like as accessories; the raw materials are selected, washed, peeled off, washed, dipped for color conserve, sliced, preliminary cooked for sterilization, smashed, coarsely grinded, homogenized by high-shearing, decomposed by enzyme and the like, and then the obtained product is blended, homogenized by high-shearing, dried by spraying, cooled, packed and the like to obtain the instant burdock flavor powder. The invention is characterized by combining the methods of enzymic reaction and high-shearing homogenizer wet superfine grinding for processing burdock, thus enhancing the fineness of burdock fiber, increasing the instant ability of the product. The invention adopts spray drying for evaporation of water at low drying temperature, therefore, the burdock flavor powder of the invention enjoys good instant ability and color and low waste of nutrient components. Compared with the existing dry ground which is used in the production of instant burdock flavor powder, wet grinding can save electricity by over 10% and steam by over 30% in producing a ton of the product.