A fuse unit includes a bus bar and a housing. The bus bar includes a power source-side connection section, an output-side connection section, and a fusible body. A terminal configured to be connected to the output-side connection section includes a bent section and protrusion sections. The housing includes a terminal accommodation section for accommodating the output-side connection. The accommodation space is enclosed with side walls standing upright on both sides of the output-side connection section in an insertion direction of the terminal and on a deep side thereof in the insertion direction of the terminal. The terminal accommodation section includes terminal insertion start-side movement restricting walls and a height-direction and terminal insertion start-side movement restricting wall.