[Aim] In September 2016, a specimen of an unidentified alive weevil was detected by the Linyi Entry-exit Inspection and Quarantine Bureau, China on poplar logs imported from Germany.[Method] The insect was identified using morphological characters, mitochondrial DNA cytochrome oxidase Ⅰ gene (mtCOⅠ) sequence and phylogenetic analysis.[Result] Identification using morphological characteristics indicated that this insect was Sitona lineatus L. (Coleoptera:Curculionidae). This was confirmed by the 100% homology rate of COⅠ sequence of this insect and mtCOⅠ sequence of S. lineatus in GenBank.[Conclusion] The results unequivocally confirmed that the intercepted insect was S. lineatus. This is the first intercepted specimen from imported poplar logs, indicating the possibility that the pest can reach China; attention needs to be paid by inspection and quarantine departments to its possible presence.