china is one of the powerful country in this world.they are in a high position in economy.and also china is well developed country.but they still don't like bitcoin revolution.what is the main reason for that?
Bitcoin is world first decentralised digital currency that means it doesn't comes under control of government term and conditions. China government doesn't want this thing. China government has some reason due to this they want to stop creating and exchanging cryptocurrency in their country. According to china government crypto currency manipulate market value of many things and also affect their country financial. 
Another reason is china doesn't want anything in their country which affects their banking system. 