As a class A pathogen in powdered infant formula, Cronobacter could cause meningitis, necrotizing enterocolitis and bacteremia to neonates and the mortality rate is 40%-80%, which has caused public concern. This article was based on domestic and abroad reports of Cornobacter, summerized the epidemiological characteristics, serotyping characteristics, environmental resistance characteristics, virulence genes and dominant clones related to pathogenicity.It is suggested that the clinical survelliance system should be strengthened to catch the incidence and high-risk foods of Cronobacter in China, so as to develop prevention and control strategies.