Electrical Junction Box

An electrical junction box includes a housing, a bus bar, a nut, and an insulating cap. A through hole of the housing has a first end side and a second end side, and the first end side is opened in a bus bar placement surface of the housing. The bus bar is placed on the bus bar placement surface and is fixed to the housing such that a first bolt hole of the bus bar and the through hole communicate with each other. The cap is attached to the housing. A terminal having a second bolt hole is fixed to the bus bar by fastening a bolt inserted into the second bolt hole and the first bolt hole in this order to the nut so as to sandwich the bus bar and the terminal.