She was officially invited by the Communist Party of China (CPC) as the leader of Myanmar's National League for Democracy (NLD).
The visit has come at a time of tension between the two countries, BBC reported.
She will meet Chinese President Xi Jinping and Premier Li Keqiang, but details of the meetings have not been revealed.
Relations between the countries have cooled in recent years, partly because of violence near their mutual border.
Myanmar has been fighting rebels in its eastern Kokang region, which borders China's Yunnan province.