The maximum size of a block in the blockchain is limited to 1 MB, which also limits some transactions that can be confirmed at anytime. Therefore, people will wait longer for confirming the transations when they sumbited it. And not only that, Larger transaction fees are another big problem. The average time for finishing a transaction had slowed down. To solving this problem, the most direct method is increasing the block size, which is not that easy. In the end, the hard fork of the Bitcoin took place on Aug. 1, 2017, marking the creation of Bitcoin Cash(BCH) as its own independent cryptocurrency. Using bitcoin cash, it only needed to get the other one’s wallet address and it could be completed within a few minutes, which is faster than the transaction of Bitcoin. More than that, the transaction fees of using Bitcoin Cash are cheaper. For the current bitcoin block congestion problem, bitcoin cash solves this pain point, and the fast transfer is the best feature. The joining of some online merchants has facilitated the use of bitcoin cash for users around the world. No matter where the user is in the world, bitcoin cash can be easily used. Although bitcoin cash has not been created for a long time, its payments have spread all over the world, which strongly proves that bitcoin cash has great strength and potential.