ZURICH, Jan 18 (Reuters) - Chinese Vice-Premier Liu He told U.S. Treasury Secretary Janet Yellen on Wednesday their countries need "serious communication" and coordination on issues including climate change and the economy and that he was ready for an in-depth exchange.

"We do believe that we have to always bear in mind the bigger picture, try to manage our differences appropriately and seek common ground," Liu said. "In this way, hopefully we can work together to maintain the overall stability of Chinese-U.S. relations."

Liu said he agreed with Yellen that the two countries should always maintain dialogue and exchanges, no matter how circumstances changed, adding: "That is why I am very much ready to work together to seize the opportunity we have today, Madam Secretary, to carry out professional, in-depth, frank and pragmatic exchanges." (Reporting by Andrea Shalal Writing by Paul Carrel Editing by Rachel More)