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The application discloses an air turbine engine experiment platform, and relates to the field of aerospace, and aims to solve the problem that an air turbine engine is inconvenient to test performance. The air turbine engine experiment platform comprises a gas generator, an electric duct is arranged at one end of the gas generator, a spark plug is arranged on the outer wall and is in communication, a first nozzle is arranged between the spark plug and the electric duct in the gas generator; a turbine is in communication with the gas generator at one end; a main combustion chamber is in communication with the other end of the turbine, and the main combustion chamber is provided with a first through hole close to the one end of the turbine; and a compressor is coaxially connected with the turbine and is in communication with the first through hole. The electric duct is started to introduce air into the gas generator, the spark plug ignites the fuel injected by the first nozzle, high-temperature gas is generated to drive the turbine to rotate, the compressor is driven to move, air is introduced into the main combustion chamber, and the high-temperature gas and the air are discharged after being combusted in the main combustion chamber. The application uses air as an oxidizing agent to realize the function of an air turbine rocket engine, and is convenient to operate and test the performance of the air turbine engine.