A fusible link mounting structure, comprising a three-series fusible link formed by providing three pieces of fuse elements in series within a single common housing, a cavity having a mounting space formed according to a size of the common housing for the three-series fusible link, a plurality of tabs projected from a bottom of the cavity into the mounting space, and a monopole fusible link formed by providing a piece of fuse element in a single monopole housing, wherein a total length of the mounting space is set to be shorter than a sum of lengths of three-pieces of the monopole housings, and the tabs are arranged corresponding to positions of fuse terminals provided in the three-series fusible link, and also arranged at such positions that a plurality of the terminals do not interfere with the monopole housing, when the monopole fusible link is mounted in the cavity.