AbstractEurya rubiginosavar.attenuatais a valuable multiuse tree with a long history of use in China. It has great economic and ecological importance and is used for landscape and urban planting, soil improvement, and raw materials for food production. However, genomic studies ofE. rubiginosavar.attenuataare limited. Meanwhile, the classification of this taxon is controversial. In this study, the complete plastome ofE. rubiginosavar.attenuatawas successfully sequenced and assembled. The chloroplast genome is 157,215 bp in length with a 37.3% GC content. The chloroplast genome structure includes a quadripartite structure comprising a pair of inverted repeat (IR) sequences of 25,872 bp, a small single-copy (SSC) region of 18,216 bp, and a large single-copy (LSC) region of 87,255 bp. The genome contains 128 genes, including 83 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. Phylogenetic inference based on complete plastome analysis showed thatE. rubiginosavar.attenuatais closely related toE. alataand belongs to the family Pentaphylacaceae, which differs from the results of the traditional Engler system. The chloroplast genome sequence assembly and phylogenetic analysis enrich the genetic resources of Pentaphylacaceae and provide a molecular basis for further studies on the phylogeny of the family.