The invention discloses a fixing plate processing process, which comprises the following steps that 1, a material is cut by a laser cutting machine, the length is 40mm, the height is 25mm, and the thickness is 10mm; 2, two sides of the top of the product are subjected to chamfering, and a 2*45-degree angle is chamfered; 3, the cut product is positioned by a milling machine, a round hole is drilled in a position with a distance being 18mm from the bottom end of the product and with a distance being 20mm from the side surface of the product, and the diameter of the round hole is phi5+(02-01)mm; 4, screw threads are tapped at the round hole with the diameter being phi5+(02-01)mm by a tapping machine, and M6 screw threads are tapped; 5, holes are milled by the milling machine, through holes being phi4.5mm are drilled in the bottom side surface, and the distance between the two holes is 20+/-0.1mm; 6, the round hole being phi4.5mm processed in the bottom is further processed, a round hole being phi8mm is milled, and the depth is 20mm; 7, the product appearance is subjected to round angle chamfering processing, and an R0.5 angle is chamfered; 8, the processed product is subjected to deburring, the surface polishing is carried out, and the surface roughness reaches Ra3.2 after the grinding; 9, product inspection and warehousing are carried out. The fixing plate processing process has the advantages that the requirements are met, the defective rate is reduced, and the production cost is reduced.