In China, credit cards are paid through UnionPay in most cases. The following are the data reported by Nelson in 2016. You can find the position of UnionPay:
在中国，信用卡在大多数情况下是通过银联网络支付的。以下是2016年纳尔逊报告的数据。您可以找到银联的立场：
(Please note that the data is credit card plus debit card transactions. Source: card and mobile payment industry statistics)
（请注意，数据为信用卡加借记卡交易。来源：卡和移动支付行业统计）
I just searched Google for 15 minutes, and found no direct evidence that credit cards are not popular in China.
我刚用谷歌搜索了15分钟，没有找到直接证据表明信用卡在中国不受欢迎。