Two types of superhydrophobic high-temperature vulcanized （HTV） silicone rubbers （SRs） and a normal HTV SR were prepared to investigate the influences of corona discharge on their hydrophobicity and recovery. Considering the rolling angle of SR surface is greater than 90° after corona treatment

the contact angle hysteresis is substituted for it to represent the self-cleaning property of SR surface. Test results show that the static contact angle and contact angle hysteresis of the normal SR before corona treatment are 113.2° and 11.7°

respectively. While both superhydrophobic SRs with micro-structure surface have the static contact angle of larger than 150° and contact angle hysteresis of smaller than 3°

which means they have excellent superhydrophobicity and self-cleaning property. The hydrophobicity and self-cleaning property of normal SR are obviously inferior to those of superhydrophobic SRs after corona treatment or in the process of recovery. For the two types of superhydrophobic SRs

the hydrophobicity and recovery property of the surface with closed-architecture structure are superior to those of the surface with open-architecture structure.