The invention discloses a method for processing dry root of pilose asiabell. The method is characterized by comprising the following steps of 1, removing bark of fresh root of pilose asiabell, and cleaning up for next use, 2, based on the weight of the fresh root of pilose asiabell, adding 3 to 5wt% of old tea and 3 to 5wt% of honeysuckle with water of which the amount is 5 to 8 times the total amount of the old tea and the honeysuckle, carrying out decoction for 30 to 40 minutes, adding the fresh root of pilose asiabell into the decoction solution, putting the mixture into a vacuum tank, carrying out vacuum-pumping until the pressure is in a range of -0.09 to 0.10Mpa and keeping a vacuum state for 40 to 60 minutes, and 3, taking out the treated root of pilose asiabell, carrying out draining, drying at a temperature of 40 to 45 DEG C with a kneading process carried out once every 1-2 hours, for 10 to 20 minutes at a time, until water content is in a range of 10 to 14%, and carrying out vacuum packaging to obtain the dry root of pilose asiabell. Root of pilose asiabell is immersed by a certain concentration of a decoction solution of old tea and honeysuckle, and thus the treated root of pilose asiabell is not damaged by worms in one year, has good insect prevention and moisture prevention effects, long insect prevention and moisture prevention duration time, good drug efficacy and a low oil leakage ratio, is not poisonous to a human body and does not produce pollution on the environment.