The invention provides double-component peelable cement gum, which is composed of a component A and a component B. The component A comprises polyether polyol, isocyanate, surface hydroxyl modified paraffin, a thickener and a solid filler. The component B comprises polyether polyol, a catalyst, a chain extender, surface hydroxyl modified paraffin, a thickener and a solid filler; and the chain extender comprises castor oil. According to the invention, paraffin with hydroxyl on the surface is introduced into two components, so that a product does not stick to hands of operators during kneading; meanwhile, due to the fact that hydroxyl on the surface can react with the isocyanate, the cement gum has good compatibility after being cured, material cracking, pulverization and deformation caused by migration are avoided, meanwhile, the cement gum obtained after curing has good weather resistance in high-temperature, high-humidity, high-salt and other environments, and the cement gum can play arole in protection and plugging for a long time in severe environments. Meanwhile, the chain extender contains a certain amount of castor oil, so that during stripping, the cement gum can be used forforming whole glass and basically has no residue on a protected device.