Preparation method of digestion-aiding medicinal tea

The invention relates to the technical field of functional tea, and particularly discloses a preparation method of digestion-aiding medicinal tea which is prepared from the following raw materials in parts by weight: 50-70 parts of tea leaves, 30-50 parts of barley and 0.2-1 part of cinnamon. The preparation process comprises the following steps: step 1, preparing materials: taking the tea leaves, barley and cinnamon according to the weight ratio, and respectively washing for later use; step 2, carbonization: adding the raw materials into a carbonization furnace, introducing nitrogen, starting heating in an anaerobic state, baking at a high temperature until the raw materials are carbonized to a carbonization degree of 10-60%, stopping heating, and quickly taking out to obtain a carbonized material; 3, crushing: transferring the carbonized material into a crusher, and crushing the carbonized material into particles; and step 4, sub-packaging: sub-packaging the carbonized particles in non-woven fabric small ba