[Obj ect]Provided are a balloon coating method and a balloon coating apparatus by which the thickness and/or morphological form of a drug in a coating formed on a balloon can be appropriately set.[Solution]The balloon coating method and the balloon coating apparatus (50) are for forming a coating layer (32) on a surface of a balloon (30). The balloon coating method includes: a coating step of moving a coating section (94) for applying a coating liquid (R) containing a drug relative to the balloon (30) in the direction of an axis (X), while rotating the balloon (30) about the axis (X) of the balloon (30), thereby to apply the coating liquid (R) to an outer surface of the balloon (30) a detection step of detecting the distance (L) of a dried part (B) where the coating liquid (R) applied to the outer surface of the balloon (30) has been dried from the coating section (94) and a control step of controlling moving velocity (Sx) of the coating section (94) relative to the balloon (30) in such a manner that the distance (L) of the dried part (B) from the coating section (94) is maintained at a preliminarily set designated distance (L0).
