China's economic growth weakened to 6.2 percent year-on-year in the second quarter, but remained stable on the whole in the first half of this year at 6.3 percent, according to data released by the National Bureau of Statistics on Monday.

The country's industrial output rose by 6.3 percent year-on-year in June, compared with 5 percent in the previous month, official data showed.

But in the first half of this year, industrial output growth dropped to 6 percent, down from 6.5 percent in the first quarter.

Fixed-asset investment growth was 5.8 percent in the first six months combined, compared with 6.3 percent in the first quarter, according to the NBS.

Retail sales increased by 8.4 percent year-on-year in the first half of this year, compared with 8.3 percent in the first quarter, the data showed.

Production rises 34.6 percent for new energy vehicles and 20.1 percent for solar cells year-on-year in H1, the NBS said.

The bureau said that growth remained on track despite increasing external uncertainties and new downward growth pressure.