The blue-chip CSI300 index rose 1.0pc, to 3,911.73, while the Shanghai Composite Index closed up 0.9pc at 2,973.66.For the week, CSI300 gained 2.5pc, while SSEC was up 2.4pc.
U.S. and Chinese negotiators on Thursday wrapped up a first day of trade talks in more than two months as business groups expressed optimism the two sides might be able to ease a 15-month trade war and delay a U.S. tariff hike scheduled for next week.
U.S. President Donald Trump said "we had a very, very good negotiation with China", while a White House official said the talks had gone "probably better than expected".
Sectors rallied across the board on Friday, with financials and energy firms leading the gains.
The market rally is ongoing given low valuations overall, though any further upward trend would depend a lot on the rolling out of more-than-expected easing policies by domestic and overseas countries, Huachuang Securities wrote in report.
MSCI's Asia ex-Japan stock index was firmer by 1.29pc, while Japan's Nikkei index closed up 1.15pc.
At 07:17 GMT, the yuan was quoted at 7.1052 per U.S. dollar, 0.14pc firmer than the previous close of 7.115.
The largest percentage gainers in the main Shanghai Composite index were Xinjiang Youhao Group Co Ltd, up 10.07pc, followed by China Hi-Tech Group Co Ltd, up 10.06pc and HY Energy Group Co Ltd up 10.03pc.
The largest percentage losses in the Shanghai index were Panda Financial Holding Corp Ltd down 9.96pc, Fujian Raynen Technology Co Ltd down 7.85pc and Zhe Jiang Taihua New Material Co Ltd down 7.68pc.
As of 07:18 GMT, China's A-shares were trading at a premium of 29.55pc over the Hong Kong-listed H-shares.