The complete mitochondrial genome (mitogenome) of Biston thoracicaria (Lepidoptera: Geometridae) is 15,538 bp in length, containing 13 PCGs, 22 tRNAs, two rRNAs, and an A + T-rich region. All PCGs initiate with typical start codon of ATN and share the complete stop codon of TAA, whereas cox1 starts with CGA. The ML analysis was performed using a dataset matrix containing 13 PCGs concatenated from the mitogenomes of Geometridae species. Our study presented the phylogenetic relationship of (Larentiinae + ((Sterrhinae + (Ennominae + Geometrinae))). Within the genera Biston, B. thoracicaria grouped with other species as the sister group.