German Chancellor Angela Merkel left Xi'an, capital of northwest China's Shaanxi Province Sunday morning, ending her fourth China visit since taking office.

Merkel was in China between July 15-18 for an official visit at the invitation of Chinese Premier Wen Jiabao. During her stay in China, Merkel held talks with Premier Wen, and also met with Chinese President Hu Jintao and Vice President Xi Jinping.

In Xi'an, Merkel and Wen who was also in Shaanxi for an inspection tour held talks with heads of well-known German and Chinese firms. The two also visited Siemens Signaling Company Ltd., a Sino-German joint venture.

Merkel also visited the mausoleum of Qinshihuang, the first emperor of a united China, where the famous terracotta warriors and horses are located.