FTSE 100 Index, the British benchmark stock market gauge, Monday increased by 0.53 percent, or 36.41 points, to 6,891.43 points.
The London stock index increased on the back of economic stimulus in China and Britain's strong economic data.
China eyes a volume of 2.5 trillion U.S. dollars in annual trade with countries involved in belt and road initiatives within a decade or so.
The number of mortgages being granted across the Britain hit a six-month high in February, Bank of England data showed on Monday.
Antofagasta's share price increased by 3.43 percent, topped the gainers of the blue chips. Ashtead Group, London Stock Exchange Group, ARM Holdings and Coca-Cola HBC AG increased by 2.90 percent, 2.61 percent, 2.50 percent and 2.01 percent, respectively.
Smiths Group led the top losers of the blue chips with a share price drop of 2.84 percent, followed by BG Group (2.44 percent), Barratt Developments (1.87 percent), Capita (1.58 percent) and BT Group (1.27 percent).
The index has gained 6.18 percent so far this year when measured in U.S. dollar.