Nicrophorus maculifrons belongs to Nicrophorinae，Silphidae，Coleoptera. In this study，high-throughput sequencing technology was used to assemble the complete mitochondrial genome sequence of N .maculifrons . The study analyzed the sequence structure，base composition，codon usage frequency，and the secondary structure of tRNA genes of N .maculifrons . At the same time，two phylogenetic trees were constructed using Bayesian and maximum likelihood methods based on the sequences of 13 protein-coding genes of the N .maculifrons and seven other species of Silphidae. The results showed that the mitochondrial genome of N .maculifrons is 16692 bp，including 13 protein-coding genes，22 tRNAs，2 rRNAs and a control region. The genome exhibits a significant AT bias，with an A+T content of 76.42%. Among the 22 tRNA genes，all but four，which have partial structural deficiencies，exhibit the typical cloverleaf secondary structure. The results of two phylogenetic analyses based on 13 protein-coding genes showed that the phylogenetic relationship between the N .maculifrons and Nicrophorus nepalensis is the closest，which was consistent with the traditional morphological classification results.