This question have been asked how many times already.We should try to search first before on posting so that we wont repeat these kind of questions all over and over again and answering this all over again.
But i would still answer on this one, China did really make an effect on bitcoins price knowing that they are one of the big players on crypto and now they do decide to close exchanges and banning ICO which causes for price to dip but still no worries because price do normally goes back up again.