The present invention discloses a preparation method of environment-protective heat-insulation and waterproof dope used in construction; the component contains: 1kg of
sodium hexametahposphate solution with the concentration of 10 percent, 0.02kg of
stain-proofing agent, 0.02kg of brightening agent, 0.01kg of ultramarine, 28kg of
polyethylene alcohol synthesized tackiness agent, 0.15kg of
tributyl phosphate, 10kg of light
calcium, 27kg of
hydroxyethyl cellulose solution with the concentration of 2 percent, 20kg of active
calcium carbonate, 10kg of
benzene latex, and the other of water; firstly, the
polyethylene alcohol synthesized tackiness agent is added into a
jar for mixing, at the same time, the
cellulose solution is added; after mixing for 15 minutes, the
stain-proofing agent is also added to be mixed for 5 minutes; the active
calcium carbonate and the light calcium are added together to be mixed for 30 minutes. The ultramarine and the brightening agent are added to be mixed for 15 minutes; the
tributyl phosphate is added to be mixed for 10 minutes; finally, the
benzene latex is added to be evenly mixed. The present invention has the advantages of much better heat-insulating effect as well as much better waterproof performance. The present invention is innocuous, flavourless and non-
pollution. In addition, the present invention has the effect of imitating porcelain.