Moscow and Beijing have expanded military and defence ties since Russia ordered troops into Ukraine nearly three years ago, with Chinese President Xi Jinping one of Russian President Vladimir Putin's most important allies on the world stage.

But Beijing has also found itself increasingly stuck between a burgeoning alliance of Russia and North Korea, which has sent soldiers to Ukraine and this week ratified a landmark defence pact with Moscow.

On Tuesday, Chinese foreign minister Wang Yi will meet with Shoigu, the secretary of Russia's Security Council, for "strategic security consultations", Beijing said.

The two sides will discuss "major issues involving the two countries' strategic security interests and enhancing mutual trust", foreign ministry spokeswoman Mao Ning said on Monday.

Shoigu was Russia's defence minister for the first two years of its offensive on Ukraine, before being moved to the Security Council by Putin after a string of military setbacks and criticism from the country's influential military correspondents.

Shoigu is also expected to this week attend Airshow China, which showcases Beijing's civil and military aerospace sector every two years in the southern city of Zhuhai.

Russia's most advanced jet, the Su-57 stealth fighter, will make a display flight at the show.