Foreigners can not work online on the reunion visa.
The reunion visa is a type of visa set up to reunite foreigners with their relatives in China. Foreigners holding the reunion visa in China mainly aim at visiting relatives and friends, reuniting with their families, etc., and do not have the right to work. If working online with a reunion visa, it will violate the relevant provisions of China’s Exit Entry Administration Law and be considered as illegal employment in China without obtaining a work permit in accordance with regulations, and will be subject to corresponding penalties.
If foreigners want to work in China, they need to apply for corresponding work visas according to their own conditions, such as work type residence permits, and meet the relevant application conditions and requirements.