With the export-heavy Chinese economy reeling from the U.S. downturn, Clinton sought in meetings with Premier Wen Jiabao and other top Chinese government leaders to reassure Beijing that its massive holdings of U.S. Treasury notes and other government debt would remain a good investment.
"I appreciate greatly the Chinese government's continuing confidence in United States treasuries. I think that's a well-grounded confidence," Clinton told reporters at a joint news conference with Chinese Foreign Minister Yang Jiechi.
"We have every reason to believe that the United States and China will recover, and together we will help lead the world recovery," she said.
After a day of talks on her first visit to China as America's top diplomat, Clinton and Yang said a regular high-level U.S.-China dialogue on economic matters would be expanded to include security issues.
Details of the dialogue are to be finalized by President Barack Obama and Chinese President Hu Jintao when they meet at an economic summit in London in early April, Clinton said.
Yang said China wants its foreign exchange reserves - the world's largest at $1.95 trillion
- invested safely, with good value and liquidity. He said future decisions on using them would be based on those principles, but added that China wanted to continue work with the U.S.
"I want to emphasize here that the facts speak louder than words. The fact is that China and the United States have conducted good cooperation, and we are ready to continue to talk with the U.S. side," Yang said.
Beijing is the last and perhaps most important stop on Clinton's weeklong visit to Japan, Indonesia, South Korea and China on which she wanted to focus on the economy and global warming.
China last year surpassed the United States as the world's leading producer of greenhouse gases and Clinton said she and Chinese officials had agreed to develop clean energy technology that would use renewable sources and safely store the dirty emissions from burning coal.
Visiting a new gas-fueled power plant in Beijing, Clinton urged China not to repeat the "same mistakes" western countries had made when they developed.
"When we were industrializing and growing we didn't know any better," she said. "Neither did Europe. Now we are smart enough to figure out how to have the right kind of growth, sustainable growth, clean-energy driven growth. This plant could be a model."
Along with cooperating on the financial crisis and climate change, the United States wants China to step up efforts to address threats like Iran and North Korea's nuclear programs and tenuous security situations in Afghanistan and Pakistan.
In addition, Clinton said the U.S. would like to see China play a positive role in Myanmar and Sudan, two countries which receive large Chinese investments but whose governments are at odds with Washington.