Libra, Facebook's stable coin, has attracted the attention and vigilance of financial circles and regulators in various countries.Libra has advantages in technology maturity, stability, security and application scenario, which will also bring various measurement risks, increase the difficulty of foreign currencies exchange control, weaken the effect of monetary policy implementation, and increase the difficulty of anti-money laundering and anti-terrorist financing.In this regard, China's regulators are suggested to make clear the legal nature of Libra firstly.Secondly, China needs to adjust the regulatory means and the specific way of foreign currencies exchange management.Finally, internet giants with the strength of blockchain and digital currency technology research and development should be encouraged to try to issue stable coin linked to RMB 1:1.Regulators can guide and promote the above business giants to create their own governance rules of stable coin before formulating and issuing corresponding laws or policies.Based on the mature experience and business model of Chinese Internet giants in exploring stable coin issuance, People's Bank of China will draw experience from them and finally establish a legal digital currency issuance system.