The invention discloses a continuous fiber plane hot-pressing compound device.The continuous fiber plane hot-pressing compound device comprises a combined unreeling machine, a transverse feeder, a high-low unreeling machine, a roll-in compound machine, a traction cutting machine, a transverse trimming machine and a reeling machine, all of which are sequentially connected.The operating direction of a composite material serves as reference, an upper heating region is arranged in the region, between an upper inlet roller and an upper pressure roller, of the roll-in compound machine, and an upper cooling region is arranged in the region, between the upper pressure roller and an upper outlet roller, of the roll-in compound machine.A lower heating region is arranged in the region between a lower inlet roller and a lower pressure roller, a lower cooling region is arranged in the region between the lower pressure roller and a lower outlet roller, heating bodies are arranged in the heating regions, and cooling bodies are arranged in the cooling regions.The continuous fiber plane hot-pressing compound device is reasonable in structural arrangement, good in reliability, high in yield and better in compound effect, by means of the assembly line arrangement, the working efficiency of the hot-pressing compound device is greatly improved, the device is suitable for high-strength continuous fiber plant hot-pressing compound operation, and operation of the mechanical device is simple and user-friendly.