MOUNTING STRUCTURE FOR ELECTRICAL DEVICE

A mounting structure for an electrical device includes a vehicle electrical device and a supporting member which supports the electrical device. The supporting member includes: a body portion to which the electrical device is supported and fixed; and a front extension portion extending from the body portion toward a vehicle front side further than an end portion of the electrical device at a vehicle front side. The body portion and an end portion of the front extension portion at the vehicle front side are fixed to the vehicle body floor, and a rigidity of the front extension portion in a vehicle front-rear direction is lower than a rigidity of the body portion in the vehicle front-rear direction.