A condensation-proof Dewar bottle structure for superconductive electrical equipment is characterized in that a coating made of hydrophobic materials covers the outer surface of the outer wall of a Dewar bottle. By means of the coating which is made of the hydrophobic materials and is arranged on the surface of the Dewar bottle, the phenomenon of condensation generated when moisture in air condenses on the surface of the Dewar bottle can be reduced under the situation of high humidity or low temperature, adverse consequences such as poorer thermal insulation and weakened insulation performance caused by condensation of the Dewar bottle are avoided, and the safety and reliability of the superconductive electrical equipment are improved.