The complete mitochondrial genome sequence of triploid pengze crucian carp was 16,580bp in length. The mitochondrial genome contains 22 transfer RNAs, 13 protein-coding genes, 2 ribosomal RNAs and 2 non-coding regions (control region and origin of light-strand replication). All genes were encoded on the heavy strain except for ND6 and eight tRNA genes. The overall base composition is A 31.53%, T 26.23%, G 16.15%, C 26.09%, with an A+T bias of 57.76%. The complete mtDNA sequence of the geographic triploid pengze crucian carp was reported in this study for the first time.