The invention discloses a short-column machining technology. The machining technology comprises step one, cutting, cutting the shapes of products according to drawing sizes initially, wherein the length is 15mm, and the diameter phi is 12+0.2-0.1mm; step two, finish milling, performing finish milling on the columns into columns which are 12mm long; step three, punching the centers of the columns with the diameter phi being 12+0.2-0.1mm to drill round holes with phi being 3.3mm; step four, tapping M4 threads towards the 3.3mm-round holes; step five, chamfering R0.5 angles; step six, performing de-burring and surface polishing till the surface roughness being Ra3.2; step seven, performing checking and storage. By means of the machining technology, production requirements are met through cutting machine shape cutting, miller finish milling, miller hole milling, tapping, chamfering, de-burring, surface polishing and quality detection, the accuracy and the strength of produced short columns are improved, requirements are met, the reject rate is reduced, and the production cost is reduced.