ELECTRICAL JUNCTION BOX

An electrical junction box includes a box body, a housing member fixed to a fixing surface that is set on a portion of an inner surface of the box body, and an electronic component that is housed in the housing member and to which a wire W is to be connected. The housing member includes a wire lead-out surface from which the wire W connected to the electronic component is to be led out, a component housing portion that is a space for housing the electronic component and that includes an opening portion that opens in the wire lead-out surface, and an extended wall portion that is located on the fixing surface side relative to the component housing portion and extends to a side of the opening portion in an opening direction thereof relative to the wire lead-out surface.