REG Windppower expects formal planning permission to be received in the next few weeks and will be subject to the normal three month legal challenge period.
The five wind turbines each stand 100m high, to the tip of the blades, and have 40m-long blades.
REG chief executive Andrew Whalley said: "The decision by Cornwall Council is welcome news and it is particularly pleasing to secure consent at local authority level, without recourse to the additional expense and delay of the appeal system. When operational the output generated by the wind farm will be sold into the local electricity network adding significantly to Cornwall's overall green electricity targets."
REG has 10 operational wind farms, six with planning permission and awaiting construction, and a further 12 for which it is seeking planning permission.