The invention relates to the technical field of coatings, in particular to a water-based polysiloxane ceramic simulating coating. The water-based polysiloxane ceramic simulating coating is composed ofa component A, a component B and a component C, wherein the component A is composed of water-based nano sol, filler, pigment, an anti-sagging agent, a leveling agent and a dispersing agent, the component B is a catalyst, the component C is a silane coupling agent, and the mass ratio of the component A to the component B to the component C is 10: (1-10): (0.1-5). The water-based polysiloxane ceramic simulating coating has the advantages of being good in stability before curing, simple in curing process, short in curing time, capable of being sprayed at normal temperature, long in shelf life after curing, resistant to hot and cold circulation, high in hardness, resistant to corrosion and the like, and can meet the requirement for long-term use of various metal base materials in complex andchangeable environments.