The invention belongs to the technical field of 
traditional Chinese medicine decoction piece 
processing, and particularly relates to a method for 
processing brewing exocarpium pieces. The method comprise the following steps: cleaning, performing 
ultraviolet radiation, performing quick-freezing and unfreezing, performing 
microwave drying, performing moistening and shaping, 
slicing, 
drying, packaging and performing preservation. According to the method for 
processing the 
brewing exocarpium pieces, due to 
ultraviolet radiation, effective components of the exocarpium pieces, such as flavonoids, can be increased; due to the 
modes of quick-freezing and unfreezing, loss of effective components can be reduced, 
cracking of 
cell walls of fresh exocarpium can be promoted, the 
dissolution degrees of the effective components in water can be increased, the 
microwave drying speed is rapid, a good 
thermal effect can be achieved, the activity of 
enzyme can be reduced, and the exocarpium pieces can be kept bright in color. The 
bitter taste of exocarpium can be removed, a product can be bright in color, uniform in size and good in reconstitution property, and problems that the exocarpium pieces are molded, deoiled, damaged by worms and the like when being preserved for a long time can be also solved. The product is green and 
pollution-free in the processing course, and market requirements can be effectively met.