To provide an electrical connection box which can simply and miniaturize construction and reduces the number of parts and man-hours for assembly.

Module plates 51, 52, 53, a connection bar 54, a wire connection part 65 and a connection part 66 for the connection bar 54 are provided in a terminal receptacle slot part 57. The module plates 51, 52, 53 contain a plurality of terminals 59 connected to end of each wire. The module plates 51, 52, 53 are stacked and then are penetrated by the connection bar 54 to connect to the terminals 59 selectively, so that prescribed wires on each layer are connected mutually and a desired circuit is configured. The terminals 59 have a strip shape and have a wire connection part 65 and the connection part 66 on each side. The wire connection part 65 is connected to the ends of wires, and the connection part 66 is connected to the connection bar 54.