Joint box capable of preventing line cross short circuit

The invention belongs to the technical field of junction boxes, and particularly relates to a junction box for preventing line cross short circuit, which comprises a top cover, a power supply, a bottom plate and a lower half hole, a fixing bolt is mounted above the bottom plate, and a mounting groove is formed in the bottom plate. According to the invention, the stabilizing plates are arranged in the wire passing grooves, so that the stabilizing plates can fix electric wires in the wire passing grooves in a classified manner, a user firstly installs the electric wires in the wire holder, and due to the fact that different electric wires are installed in the wire holder, the electric wires in the device are numerous; when the electric wire is led out of the device, the electric wire is fixed through the wire passing groove, the stabilizing plate in the wire passing groove can clamp the electric wire, the electric wire is prevented from shaking in the device, and meanwhile the second spring connected to the end