Fomitopsis palustris (Berk. & M.A. Curtis) Gilb. & Ryvarden, 1985 is a well-known brown-rot basidiomycete. However, the complete mitochondrial genome of F. palustris from China remains uncharacterized. In this study, we present the complete mitochondrial genome sequence of F. palustris, which spans 64,223 bp and has a GC content of 23.89%. The genome contains 15 essential protein-coding genes, 10 other ORFs, nine intronic ORFs, 26 tRNAs, and two rRNAs. Phylogenetic analysis via Bayesian inference (BI) was conducted to elucidate the evolutionary relationships among 10 closely related species, revealing well-supported clades and revealing the close relationship between F. palustris and F. pinicola.