The invention relates to a UV cured strippable water-based coating. The UV cured strippable water-based coating is prepared from, by weight, 60-70 parts of UV cured water-based polyurethane resin, 0.05-0.1 part of flatting agent, 1-10 parts of wetting agents, 1-3 parts of thickening agents, 0.2-1 part of antifoaming agent, 2-5 parts of film coalescing agents, 3-6 parts of photoinitiator, 3-8 parts of rust-proof resist, 0.10-0.30 part of mould-proof antibacterial agent, 10-20 parts of functional filler and 10-20 parts of water-based stripping agents. The invention further provides a preparing method of the coating. The preparing method includes the steps that a part of the wetting agents, the antifoaming agent, the rust-proof resist and deionized water are added into a high-speed dispersion machine and dispersed through stirring, the functional filler is added and dispersed through stirring, and the UV cured water-based polyurethane resin, the remaining antifoaming agent, the remaining wetting agents, the flatting agent, the film coalescing agents, the water-based stripping agents, the photoinitiator and the mould-proof antibacterial agents are added and uniformly stirred, continue to be dispersed and are filtered after being mixed to obtain the UV cured strippable water-based coating.