Chinese shares dropped on Tuesday, after major indices rebounded for two consecutive trading days from an over three-month low.

The benchmark Shanghai Composite Index dropped 1.25 percent to 3,280.81 points. The Shenzhen Component Index closed 0.9 percent lower at 11,043.21.

Combined turnover of stocks in the two indices shrank to 378.6 billion yuan (about 57 billion U.S. dollars) from 402 billion yuan on Monday.

The drops on both indices came after moderate rebounds on Friday and Monday from lowest levels for more than three months on Thursday.

However, the rebounds in past two days were not accompanied by notably larger trading volume, showing weak investor confidence, according to Shaanxi Jufeng Invest Info Co.

The financial sector was among the weakest, with its sub-index dropping 2.08 percent.

ICBC, China's largest commercial bank, dropped 0.85 percent. China Life Insurance plunged 3.67 percent.

Bucking the trend, non-ferrous metal sector was the only one that rose on Monday, with the sub-index up 0.29 percent.

The ChiNext Index, which tracks China's NASDAQ-style board of growth enterprises, lost 1.01 percent to close at 1,798.69 points.