A pipeline system capable of controlling intake pressure and exhaust pressure synchronously and mainly belongs to the technical field of mechanical design, and comprises air compressors, an air intake pipe, an engine, an exhaust pipe, turbines, a volume cavity, a connecting pipe, a moving body, a spring and a penetrating pipe, wherein the moving body is mounted in the volume cavity and in sealed contact with the inner wall of the volume cavity; the penetrating pipe penetrates the upper wall and the lower wall of the moving body; and the right wall of the moving body is connected with the right wall of the volume cavity through the spring. When the engine is in a high-speed working condition, the moving body moves rightwards, a first air compressor, a second air compressor, a first turbine and a second turbine work simultaneously, so that the pumping loss of the engine is lower, and the performance of the whole engine is better; and when the engine is in a low-speed working condition, the moving body moves leftwards, only the first air compressor and the first turbine work, so that pulse energy can be utilized fully, the intake pressure of the engine is higher, and the performance of the whole engine is better. The pipeline system is designed reasonably, simple in structure, and suitable for a turbo-charging system with double turbines and double air compressors.