The invention discloses technology for processing cold coated reflective glass beads, which comprises the steps of: dumping qualified glass beads with the grain size between 0.05 and 1.00mm into a feeding funnel of a drum mixer; preparing a medicament, namely taking a silane coupling agent or mixed methyl silicone oil and sodium silicate as the medicament; adding the medicament, spraying the medicament and stirring the glass beads, namely loading the medicament into a high-pressure sprayer according to the proportion of adding 400 to 600g of the medicament into each ton of glass beads, arranging a nozzle of the high-pressure sprayer above the inside of the drum mixer, downward directly spraying the medicament to the surfaces of the glass beads to form moisture proof protective films, and stirring the glass beads at the same time, wherein the stirring time is between 8 and 10 minutes; and packaging and performing random inspection, namely using packaging bags lined with plastic inner films for packaging, placing the product for 3 days, then performing random inspection, and sending the product into a warehouse after the product is qualified through random inspection. The technology has the advantages that the technology has high production efficiency, raw material conservation, energy conservation, low production cost, good coating effect and strong adhesive power, has no harm to the health of workers, meets requirement of environmental protection, and can be used for pavement markings and various reflective materials and decorative materials.