Target gene for detecting citrobacter freundii and detection kit

The invention provides a target gene for detecting citrobacter freundii. A nucleotide sequence is shown in SEQ ID NO.1. The invention also provides a real-time fluorescent quantitative PCR (polymerase chain reaction) primer and a probe. The nucleotide sequences of the primer and the probe are respectively shown in SEQ ID NO.2, SEQ ID NO.3 and SEQ ID NO.4. A kit for detecting the citrobacter freundii is also provided by the invention. The detection method and the kit thereof have the advantages of being accurate to detect, high in sensitivity, strong in specificity, simple and rapid, and have good clinical specimen detection ability.