ELECTRIC JUNCTION BOX

PROBLEM TO BE SOLVED: To provide an electric junction box capable of reducing the number of parts and electrical connections for cost reduction, miniaturization and high reliability, by incorporating a relay. SOLUTION: This electric junction box 10 involves a relay 12 in a junction box 11, wherein the respective ends 13a, 14a of a pair of bus bars 13, 14 which face each other and are disposed in the junction box 11 extend respectively, a coil-storing part 13b and a contact 13c are formed on end 13a of one bus bar 13 of a pair of bus bars 13, 14 respectively, and a contact 14c apart from or brought into contact with the contact 13c of one bus bar 13 is formed on the end 14a of the other bus bar 14 of a pair of bus bars 13, 14, so that a relay coil 15 can be stored in the coil-storing part 13b of one bus bar 13, and the contact 13c of one bus bar 13 and the contact 14c of the other bus bar 14 can be brought into contact with or apart from each other, when the relay coil 15 is energized.