According to Official Guinness Records,
The longest brocade measured 42.37 metres (139 ft) long and was created by Jiangsu Wangong Science & Technology Group Co. Ltd. (China). It was presented and measured in Wujiang City, China, on 26 March 2010. The brocade is 1.15 metres (3 ft 9 in) tall. It depicts a scene entitled "A riverside scene at Qing Ming Festival.
For a complete list of 2010 records, please visit 2010 Guinness Records in China.