Singapore: Chinese Defence Minister Wei Fenghe says the bloody crackdown on protesters around Beijing's Tiananmen Square 30 years ago was the "correct" decision, citing the country's "stability" since then.

Responding to a question at the Shangri La Dialogue in Singapore on Sunday after a hardline speech about China and international security co-operation, he called the protests political "turbulence".

China's Defence Minister Lieutenant General Wei Fenghe. Credit:AP

It is rare for Chinese government officials to acknowledge the events of June 4, 1989 and references to it are heavily censored in China.

"Everybody is concerned about Tiananmen after 30 years," Wei said.