The invention belongs to the field of control valves and particularly relates to pilot-operated type electromagnetic pneumatic valves and a combined control valve. Each pilot-operated type electromagnetic pneumatic valve mainly comprises a valve body, a pilot-valve valve core component, a main-valve valve core assembly and an electromagnetic coil drive device. Each electromagnetic coil drive device is powered on to drive a pilot valve to be switched on and controls air to enter a pilot-valve core installation cavity, an exhaust opening is sealed, the air is controlled to establish pressure, then a main valve is driven to be switched on, and a medium flows out of a medium outlet from a medium inlet; and after each electromagnetic coil drive device is powered off, the pilot valve is switched off, the air is controlled to be exhausted out of the exhaust opening, the main valve is switched off, and the medium is prevented from flowing out of the medium outlet. The combined control valve is a combination of the multiple pilot-operated type electromagnetic pneumatic valves, the structure is optimized, and the combined control valve is suitable for occasions, such as a rocket with a high requirement for the radial size. The pilot-operated type electromagnetic pneumatic valves and the combined control valve are mainly used for occasions with a large flow and high pressure, such as, liquid rocket engines, satellite in-orbit execution systems, ground test systems and automated fluid pipe systems and have the advantages of being high in integrated degree and high in response speed.