Acinetobacter baumannii, a non-fermentative Gram-negative bacterium, is known for its antibiotic resistance and clone transmission. A precise and effective genotyping method for Acinetobacter baumannii is essential to conduct epidemiological studies and control infections. The article reviews the recent progress on genotyping methods of Acinetobacter baumannii, and discusses the basic principles, advantages, limitations and application scope of these methods.