China adamantly believes that dialogue and negotiations are the proper ways to solve the Iranian nuclear issue, Foreign Ministry spokeswoman Jiang Yu said Tuesday at a daily press briefing.

"We hope the International Atomic Energy Agency (IAEA) can deal with the issue objectively and impartially," Jiang said.

The IAEA should make full use of its professional advantages to carry out interactive cooperation with Iran, and play a constructive role in solving the Iranian nuclear issue through diplomatic talks, Jiang said.