The invention belongs to the field of 
pharmaceutics, and particularly relates to an 
inhalation solution preparation containing 
Centella asiatica active ingredients and a preparation method of the 
inhalation solution preparation. The solution preparation includes 1 [mu]g / mL-30 mg / mL of 
Centella asiatica active ingredients, an isotonic agent and a 
solvent, wherein the 
Centella asiatica active ingredients are one or more selected from Centella asiatica total asiaticosides, asiaticoside, madecassoside, asiaticoside B, 
asiatic acid, pharmaceutical salts of 
asiatic acid, 
madecassic acid, pharmaceutical salts of 
madecassic acid, 
asiatic acid B and pharmaceutical salts of asiatic acid B. The solution preparation has clear pharmaceutical effects and low content of impurities, the active ingredientsof Centella asiatica have good stability during long-term storage, and the content of main ingredients reaches 98% or above; the 
inhalation solution preparation has clear pharmaceutical effects, highstability, reliable quality, high safety and long storage time, and moreover, no preservatives are added to the solution preparation, so that the safety factor of the solution preparation is higher;and the solution preparation has suitable taste, and the taste of the active ingredients of Centella asiatica is covered fully.