Provided are a resin composition having excellent electrical characteristics and heat resistance after moisture absorption, and being also excellent in flowing characteristics at the time of production of a laminate, and a prepreg, a metal foil-clad laminate and a resin sheet using the same. Used is a resin composition comprising a bifunctional phenylene ether oligomer (a) having a polyphenylene ether skeleton, an aralkyl-based cyanate ester compound (b), a bisphenol-based cyanate ester compound (c), an epoxy resin (d), a brominated carbonate oligomer (e), an inorganic filler (f), an alkoxynaphthol-based polymerization inhibitor (g) and/or a thioether-based polymerization inhibitor (h).

The present invention provides a resin composition which can simply provide, with good reproducibility, a laminate, a printed wiring board, and the like that not only have excellent heat dissipation properties but have good moldability, good mechanical drillability and excellent appearance, and a prepreg, a metal foil-clad laminate, and the like using the same. A resin composition having a cyanate ester compound (A), an epoxy resin (B), a first inorganic filler (C), a second inorganic filler (D), and a molybdenum compound (E), wherein an average particle diameter ratio of the first inorganic filler (C) to the second inorganic filler (D) is in a range of 1:0.02 to 1:0.2.