Combined wiring arrangement structure of data center machine room

The utility model discloses a combined wiring arrangement structure of a data center machine room, and relates to the technical field of data machine rooms. The wiring harness fixing device comprises a cross beam, a hanging frame and a wiring harness clamping assembly, the cross beam is fixed to the top of a computer desk partition plate of a data center machine room through two C-shaped mounting plates, a heat dissipation flow channel is formed in the cross beam, a plurality of heat dissipation holes distributed at equal intervals are formed in the two sides of the cross beam, and the heat dissipation holes are communicated with the heat dissipation flow channel; a plurality of hanging racks are hung on the cross beam, a plurality of wiring harness clamping assemblies distributed side by side are arranged at the bottom ends of the hanging racks, and the adjacent wiring harness clamping assemblies are clamped with each other; the wire harness clamping assembly comprises a clamping seat and a movable door. Acc