[Background] In 2015,one Pratylenchus population was collected in the roots and growing media of Acer palmatum imported from Japan by plant quarantine lab of Beijing entry-exit inspection and quarantine bureau, China.[Method] In the study the population was identified by morphological measurements, rDNA sequence and phylogenetic analysis.[Result] Comparing the morphological characteristics and measurements with known species, the nematode is phylogenetically close to Pratylenchus vulnus, accroding to the sequence of rDNA-ITS region with 99%. The results confirmed that this population was P. vulnus.[Conclusion and significance] P. vulnus is an important plant parasitic nematodes that has been intercepted from the entry of goods many times by our entry-exit inspection and quarantine departments, but it is the first time in the mail quarantine.