The UN experts said in a statement released in Geneva today that they fear the law "can be wielded as tools to intimidate, and even suppress, dissenting views and opinions in the country."
Chinese officials have said that it will help the groups, but critics charge that it's the latest attempt by authorities to clamp down on perceived threats to the ruling Communist Party's control.
The law, adopted by the national legislature, states that foreign NGOs mustn't endanger China's national security and ethnic unity.