Circuit framework

The utility model discloses a circuit framework comprising a support plate and an installation base used for fixing a circuit board, wherein, the installation base is arranged on the support plate, the support plate comprises a first ribbed slab and a second ribbed slab, and a guide channel is formed between the first ribbed slab and the second ribbed slab. Through the guide channel, the circuit board is separated from central wires, and a great amount of central wires are connected through the guide channel in a cross-over manner, so that the congested space and the hidden danger, which are caused by the central wires passing through the bottom part of the circuit board, are avoided; the space of the circuit framework is utilized to the greatest extent; and the safe and reliably assembly of the circuit board and the central wires is simultaneously ensured.