The invention discloses a 0.4kV line pole service wire distribution box, comprising a service wire distribution box which is fixedly connected to the side of a pole and located below a 0.4kV line, a quadrupole knife switch and aluminum bars below the quadrupole knife switch which are arranged inside the service wire distribution box, leads which are connected between the 0.4kV line and the quadrupole knife switch, and a service wire which is connected to the aluminum bars. The 0.4kV line pole service wire distribution box is used on a 0.4kV line pole in a lighting district. A down-lead A, a down-lead B, a down-lead C and a down-lead 0 are led down from the 0.4kV line through wire clamps respectively, and the four led-down leads are connected to upper openings of the quadrupole knife switchrespectively. The service wire is fixed to a branching hoop below the box through a binding wire, and one end of the service wire is connected to the aluminum rows inside the box. After a low-voltagepole of each lighting district uses the distribution box, the quadrupole knife switch can be directly pulled down by climbing up the pole without cutting off the power of a JP cabinet in the case ofnewly added business expansion, meter displacement, service wire replacement and the like, and normal power utilization of other users in the district is not influenced.