The invention discloses a high-permeable medical 
adhesive tape base material and a preparation method thereof. The 
adhesive tape base material comprises wood pulp fibers, 
polyester fibers, low meltingfibers, AKD neutral 
sizing liquid and 
wet strength agent liquid. The preparation method comprises a pulping step, a 
papermaking step, a 
drying step and a reeling step. In the pulping step, the AKD neutral 
sizing liquid and the 
wet strength agent liquid are added to a pulping 
pool and uniformly mixed. The high-permeable medical 
adhesive tape base material is prepared by mixing and pulping treatment of pure 
plant fibers and synthetic fibers through 
papermaking of a 
papermaking machine, and has the advantages of softness and loosening, homogeneous fibers, high air permeability, strong 
wrinkle resistance, easy-tearing while a product meets strength, uniform gluing and the like. The high-permeable medical adhesive tape base material is directly formed through adhesion between the fibers and melted adhesion without surface gluing reinforcement treatment, simple in 
processing technology, and low in manufacturing cost, and is a substitute good of a current medical cloth-based base material and a 
punching PE base material. Along with continuous improvement of 
human health requirements, a demand gap is large, and market prospect is extremely extensive.