The whole mitochondrial genome of Hucho taimen was firstly sequenced and characterized. The genome is 16,833 bp in length and contains 13 protein-coding genes, 2 ribosomal RNAs, 22 transfer RNAs, and a noncoding control region. Twelve protein-coding genes on the heavy strand showed that the content of A+T was higher than that of G+C, whereas the nd6 protein-coding gene on the light strand displayed an opposite pattern. We described the secondary structure of the origin of light strand (oriL) replication and found that the conserved 5'-GCCGG-3' sequence motif is variable in H. taimen and some other salmonids. We conclude that the control region is variable in length and represents the high A+T content, compared with other mitochondrial control regions available in Salmonidae and other non-salmonids. Additionally, another interesting feature of H. taimen mitogenome is that a T-type mononucleotide microsatellite and an 82 bp tandem repeat were identified in the control region.