The invention discloses a preparation method of a waterborne 
epoxy resin-based 
asphalt heat-reflection heat-insulation weather-proof 
coating. The preparation method comprises the following steps: adding water, a substrate 
wetting agent, a defoaming agent, an anti-flash-
rust agent and a coalescing agent into a paint 
mixing tank and carrying out dispersing; adding waterborne 
bisphenol A 
epoxy resinand performing dispersing; adding a pH 
regulator to regulate a pH value and carrying out dispersing; adding anionic emulsified 
asphalt and carrying out dispersing; adding an inorganic 
bentonite thickener to regulate 
viscosity; and carrying out dispersing to obtain a component A of the 
coating; adding water, a defoaming agent, a dispersing agent and an anti-
settling agent into another paint mixingtank and carrying out dispersing; adding dry-process modified 
sericite powder and 
zinc phosphate, and carrying out sanding and dispersing; adding a waterborne modified amine curing agent and carryingout dispersing to obtain a component B; and mixing inorganically coated 
rutile titanium dioxide, precipitated phase 
silicon dioxide, hollow microspheres, a dispersing agent, a waterborne 
epoxy curingagent and a waterborne epoxy 
emulsion, carrying out 
grinding and dispersing, and mixing the formed mixture with the component A of the 
coating, the component B and chemically surface-modified shell 
powder to obtain the waterborne coating.