China's President Xi Jinping (R) is welcomed by Britain's Prime Minister David Cameron to 10 Downing Street, in central London, Britain, October 21, 2015. (Photo/China Daily)
The document pledged joint efforts in fields ranging from the internationalization of China's yuan and a China-EU free trade agreement to cybersecurity and climate change.
"This is a guideline to tell people how the 'golden era' will be forged," Cui said.
Qu Xing, China's ambassador to Belgium, noted that the visit follows Xi's first European tour as Chinese head of state last year to the Netherlands, France, Germany and Belgium.
This has shown a strong continuity in China's European strategy, Qu said.
Xi has said that since Britain is an important member of the EU, the China-UK relationship and China-EU relationship reinforce each other.
China hopes to see a united European Union in which Britain plays a prominent role in promoting Chinese relations with the bloc, Xi told Cameron during the visit.
