Samples of sputum samples had higher A baumannii (+) ratios than most other specimens (81.7%) and faculties contained intensive care unit had A baumannii (+) ratio higher than 3 times compare to other clinical departments, especially Resuscitation Department - with the highest rate of 30% Conclusion: Acinetobacter baumanii had caused hospital infections with a high rate, most of the isolates were multidrug-resistant, making the treatment became more difficult.