"The United States has already declared open space a combat zone, the United States has announced that it will create independent space forces, the United States has plans to deploy anti-missile systems in space. Moreover, the United States has long been advocating holding military drills in space. All this can lead to militarisation of space, and it can also trigger an arms race in space," Lu said at a briefing.
He stressed that the United States had to abandon this policy if it was really concerned over space security.
"There have really been some changes in the space sphere recently that raise concerns not only in China, but across the global community as well, including in Russia," Lu added.
The Chinese Foreign Ministry's spokesman called on the United States to cooperate with China, Russia and other members of the global community in order to prevent space militarization and to promote its peaceful use.
US President Donald Trump signed in February a directive to establish a new Air Force branch, the US Space Force, which would focus on global surveillance, missile targeting and countering Chinese and Russian hypersonic weapons, among other priorities.