In a direct injection spark ignition internal combustion engine that performs an Atkinson cycle operation in which the time to close intake valves (3a) is retarded, the tumble flow (T) in the engine cIn a direct injection spark ignition internal combustion engine that performs an Atkinson cycle operation in which the time to close intake valves (3a) is retarded, the tumble flow (T) in the engine cylinder is intensified by the fuel (F) injected from the fuel injection valve (10) during the time period from the intake stroke bottom dead center to the closing of the intake valves (3 a).ylinder is intensified by the fuel (F) injected from the fuel injection valve (10) during the time period from the intake stroke bottom dead center to the closing of the intake valves (3 a).