China's fixed asset investment reached 9.6 trillion yuan ($1.47 trillion) over the first quarter, up by 25.6 percent year-on-year and about 2.9 percent by two-year average, the National Bureau of Statistics said on Friday.

Fixed asset investment, excluding those in agriculture, rose by 1.51 percent comparing with February.

Over the first quarter, infrastructure investment grew by 29.7 percent year-on-year and by 2.3 percent by two-year average. Investment in infrastructure increased by 29.8 percent yet contracted by 2.0 percent by two-year average. Investment in the real estate sector climbed by 25.6 percent year-on-year, and the increase came at 7.6 percent by two-year average.

Private investment rose by 26 percent comparing with same period last year and about 1.7 percent by two-year average. The size of investment in high-tech industries grew by 37.3 percent and the increase came at 9.9 by two-year average.