The invention discloses a production method of a centrifugal glass cotton-like fiber. According to the production method of the centrifugal glass cotton-like fiber, materials of quartz sands, orthoclases, limestones, glass cullet, soda ashes, borax and the like are adopted, the materials are mixed in a reasonable proportion, glass liquids can be obtained after physical and chemical reactions through kiln high-temperature melting, and short glass fiber cotton aggregates can be thrown out through high-speed centrifugal injection. Material produced through the production method of the centrifugal glass cotton-like fiber has the advantages of being small in density, low in heat conductivity, high in acoustic absorptivity, flame-resistant, frost-resistant, and not prone to decay. The material is ideal heat preservation and heat insulation material, and is mainly used in the heat insulation process of building rail structures, industrial equipment, and pipe networks, and fireproofing and the like of the buildings. The material can further used as a sound absorber which absorbs and eliminates sounds, sound-absorbing barriers, sound-absorbing wall faces and the like.