The present invention relates to an air introduction prevention device for an infusion solution set, which can improve quality and remarkably reduce unit costs of production by completely preventing an inflow of air through a very simple structural change and by easily being applied to conventional products, and the air introduction prevention device for an infusion solution set comprises: an infusion solution container having an infusion solution filled therein a drop pipette connected from the infusion solution container so as to confirm a state of the infusion solution being dropped and a hose connected to the drop pipette, wherein: the air introduction prevention device further comprises an air cutoff member having a buoyancy ball mounted on the lower side inside the drop pipette, and the buoyancy ball inserted into the inside of the drop pipette the air cutoff member comprises a dish-shaped dish part having a mounted groove in which the buoyancy ball is settled, an infusion solution discharge hole formed on the central lower side of the dish part, and a connecting pipe formed to extend in the infusion solution discharge hole and the dish part is formed from a flexible material with a thickness of a thin film.La présente invention concerne un dispositif de prévention dintroduction dair, pour un ensemble de solutions de perfusion, qui peut améliorer la qualité et réduire considérablement les coûts unitaires de production en empêchant complètement un flux dair au moyen dun changement structural très simple, qui peut être appliqué facilement à des produits classiques, le dispositif de prévention dintroduction dair pour un ensemble de solutions de perfusion comportant : un récipient de solution de perfusion ayant une solution de perfusion introduite à lintérieur de celui-ci une pipette goutte à goutte reliée à partir du récipient de solution de perfusion de façon à confirmer un état de la solution de perfusion distribuée un tuyau souple relié à la pipette goutte à
