US envoy John Kerry will hold talks in Shanghai ahead of a climate summit hosted by President Biden.
After a major diplomatic row at the UN, both sides hope to co-operate over plans to drastically cut emissions.
The US wants China to cease building coal-fired power stations and to stop financing coal ventures abroad.
China wants the US to give more cash to developing countries to obtain clean technology and adapt to climate change.
It also wants Washington to announce deep cuts in emissions.
Speaking to CNN, Mr Kerry said China’s co-operation was “absolutely critical” to battle the climate crisis.