It said that 80 billion yuan would be invested in Beijing to build a third airport in the capital city.
Read MoreChina economic growth may slow to 7.1% in 2015: Central bank report
Investment is a crucial driver of the world's second-largest economy, but it has slowed this year as authorities try to re-engineer the growth model by reducing inefficient state spending and encouraging domestic consumption.
Official data showed investment, which accounted for nearly 42 percent of China's economic growth in the first nine months of this year, grew at its slowest pace in nearly 13 years between January and November at 15.8 percent.
Read MoreChina wants to build the world a railway
Listless growth in investment and a sagging housing market have led some analysts to predict that China may slip into its worst economic cool down in nearly a quarter of a century this year as annual growth hits a 24-year-low of 7.4 percent.