Aiming at the problem that VAPS XT does not support the integration with the UE4 (unreal engine 4), a cockpit interaction integration method is proposed. Taking an avionics equipment MFD as an example, the pixel information generated by VAPS XT dynamic library is stored in memory by using OpenGL off-screen rendering technology, combined with the blueprint in UE4 and C + + to create dynamic materials, the pixel information is dynamically captured in real time and updated to display in UE4 virtual instrument, and the seamless integration of UE4 and VAPS XT is realized. The results show that this method provides a technical basis for the transplantation of the real or simulation instrument program developed by VAPS XT to the simulation training system based on UE4.