The People's Bank of China injected 100 billion yuan (about 14.4 billion U.S. dollars) into the market through seven-day reverse repos at an interest rate of 2.2 percent, according to a statement on the website of the central bank.
The move was intended to maintain reasonable and ample liquidity in the banking system, the central bank said.
A total of 50 billion yuan of reverse repos matured Tuesday.
A reverse repo is a process in which the central bank purchases securities from commercial banks through bidding, with an agreement to sell them back in the future.
China pursues a prudent monetary policy in a more flexible and appropriate way, according to this year's government work report.