Aiming at the meteorological features in parts of Xinjiang, a newtype indirect air cooling system with parallelizing configuration is proposed to 2×300 MW cogeneration plant. By the comparative analysis of technology and economy for 4 alternative air cooling systems, the economy of the newtype system is prominent, which adapts to the disadvantageous environment factors, such as high temperature in summer, chilliness in winter as well as strong wind, especially to the cogeneration plant under such meteorological conditions.