To provide a polyacetal resin composition which retains excellent conductive performance and is excellent in sliding properties, moldability and thermal stability, particularly a material exerting stable conductivity and sliding properties in sliding of a bearing under any conditions.

The polyacetal resin composition is obtained by compounding 5-15 pts.mass conductive carbon black (B) having a dibutyl phthalate oil absorption of 350 ml/100 g, 0.1-10 pts.mass graphite (C), a 1-20 pts.mass olefin resin (D), a 0.1-10 pts.mass ester (E) comprising a 12-30C monovalent fatty acid and 10-30C monovalent aliphatic alcohol and 0.05-10 pts.mass epoxy compound (F), with 100 pts.wt. polyacetal resin (A).