There were 14.8% of surgeons thought that it was essential to extend antibiotic use after surgery, 14.2% thought that antibiotic use extension would reduce the length of hospitalization after surgery; 12.6% thought that at least two types of antibiotic should be combined in any types of surgery, 9.8% thought that use of prophylaxis antibiotic in clean and clean-contaminated surgery were impossible in current situation.