Disclosed is an apparatus for producing a composite material sheet, which comprises: a pre-heating means (12) which can heat a base material having an organic solution applied thereon until the amount of an organic solvent remaining on the base material becomes 10 to 15% and which has an inert gas supply means (18),and a cure oven (13) which can heat the base material until the amount of the organic solvent remaining on the base material becomes 1% or less and which has a heating roll (21), an inert gas supply means (23) and a heating means (22). By employing the apparatus, the oxidation of the base material having the organic solution applied thereon can be prevented, curling of the base material does not occur, and the organic solution can be cured. The apparatus enables the continuous production of a high-quality composite material sheet having excellent heat resistance, weather resistance, flex resistance, shape stability, peel strength and others.