The invention provides an anti-radiation coating, which is characterized in that it is a liquid made of water-soluble wax, swim bladder, rice grains and water. The weight ratio of water-soluble wax in the anti-radiation coating liquid is 1%-20%; the weight ratio of swim bladder is 5%-25%; the weight ratio of rice grain is 1%-10%. The preparation method of the anti-radiation coating comprises: putting the above-mentioned water-soluble wax, fish maw and rice grain into a container with an appropriate amount of water, soaking for a period of time, and heating, when the water temperature reaches a certain temperature, it starts to evaporate to produce atomization, and the The resulting product is cooled and then blended. In the above preparation method, the heating time is 30-60 minutes, stop heating when the temperature rises to 70°C-90°C, keep it for 10-30 minutes, start cooling, and cool to normal temperature. It is easy to use, does not occupy space alone, has good radiation and anti-static effects, does not affect the clarity of screen images, and does not pollute the environment.