"However, Bitcoin transaction as a commodity trading behavior on the Internet, ordinary people have the freedom to participate in the premise own risk."
The new bitcoin policy here isn't that much more conservative than the USA's bitcoin policy, and Beijing just legalized bitcoin for ordinary citizen gamblers, speculators, savers, and options traders! This is a good sign for bitcoin, and the market is reacting negatively anyways, probably encouraged by whales selling off trying to hit stop loss orders.
As the Chinese social-mediasphere dissects this announcement over the next day, the price should recover. Great buying opportunity right now for the short term, even if you're not long on bitcoin.