The present invention provides an inhalation-type pharmaceutical composition for Parkinson's disease comprising a first gas and an atomized medicine. The first gas comprises hydrogen. The gas volume concentration of hydrogen in the inhalation-type pharmaceutical composition is between 2 to 96%. The atomized medicine is selected from a group comprising levodopa, sinemet, atropine sulfate, scopolamine, dopamine agonist, bromocriptine mesylate, selegiline, carbidopa, entacapone, and any combination thereof. The inhalation-type pharmaceutical composition of the present invention can provide the convenience of taking medicine and removing harmful radicals in the body of the patient through the use of hydrogen while also increases the absorption effect of the medicine for the patient by using an atomized medicine. Therefore, the present invention can provide a treatment for Parkinson's disease that combines the convenience of taking the medicine while also having better curative effects on the user.