PROBLEM TO BE SOLVED: To provide an infusion catheter through which a medicine can be evenly applied to a lesion, the infusion catheter being used for injecting a required substance to a required part inside a living body through a tubular organ.SOLUTION: The infusion catheter includes an inner side balloon and an outer side balloon 12 having fine holes 13, and includes fine fibers present between the inner side balloon and the outer side balloon 12.