A circuit board includes a substrate, a plurality of electronic components disposed on the substrate, and at least one cable management structure. The substrate is provided with a first surface and a second surface. The first surface and the second surface are correspondingly disposed. The cable management structure is used for limiting a configuration direction of at least one cable. The cable management structure includes at least one cable management column and at least one cable collection member. The cable management column is disposed on the first surface of the substrate. The cable collection member is disposed at an edge of the substrate, and the cable management column is located beside the cable collection member. The cable is capable of bypassing the cable management column and passing through the cable collection member from the edge of the substrate to the second surface, to achieve cable management and positioning effects.