The invention relates to a technique of an aqueous environment-friendly high-temperature-resistant self-lubricating coating, particularly relates to aqueous environment-friendly inorganic high-temperature-resistant self-lubricating paint as well as a preparation method and application thereof, and belongs to the field of fine chemical engineering. The paint is prepared from liquid silicate, a coating enhancer, a lubricant, a thickener, an antifoaming agent and distilled water. First, all solid components are weighed and taken according to a proportion, are put into an agitation crusher after being premixed and are taken out to obtain the solid components after being agitated for 2 to 20 minutes at a rotational speed of 500rpm to 20,000rpm. Afterwards, the solid components and liquid components are weighed and taken according to a proportion; the solid components are added into the liquid components while agitation; an obtained first mixture is sufficiently mixed; afterwards, the distilled water is added into the first mixture; an obtained second mixture is agitated for 5 to 20 minutes at a rotational speed of 500rpm to 3,000rpm in an agitator; the second mixture is filtered through a 200-mesh screen mesh, so that the paint is subsequently obtained. The paint is spray-coated, dip-coated or brush-coated on the surface of a metal part, which is subjected to sand blasting or acid pickling treatment, by adopting a spray-coating, dip-coating or brush-coating way; the paint is solidified for 1min to 24h in an environment at a temperature from a room temperature to 300 DEG C, so that a high-temperature-resistant self-lubricating coating is obtained.