The invention discloses a fixing support for garden engineering wireless network laying. The fixing support comprises a base and a main rod, the lower end of the main rod is welded to the center of the base, a cross arm perpendicular to the main rod is welded to the upper end of the main rod, a plurality of cable fixing devices are arranged on the cross arm, a vertical straight rod is welded to the middle of the cross arm, a left lightning rod and a right lightning rod are installed at the upper end of the straight rod, bird nesting prevention devices are arranged on the straight rod, supporting rods are welded to the bottoms of the two ends of the cross arm, and one end, away from the cross arm, of each supporting rod is welded to the rod walls of the two sides of the main rod. The fixingsupport has the advantages that the bird nesting prevention devices are arranged on the able fixing devices correspondingly, in case of breeze, fan covers at the two ends of a rotating rod drive therotating rod to rotate under the action of wind power, caltrops spine on the rotating rod can prevent birds from approaching and staying, the birds are prevented from nesting on the cable fixing devices, the use of a wireless network is not influenced, and the birds are prevented from damaging cables.