At present, the number of people online gambling in China exceeds 11 million, and there are tens of thousands of active gambling platforms every month. The accumulated number of active gambling APPs exceeds 170000, the number of gambling websites exceeds 600000, and more than 1 trillion yuan of funds flow overseas every year. Gambling platforms are generally promoted through abnormal channels. The platforms are covert and most of the service personnel are overseas, which increases the difficulty of the crackdown. Moreover, the rise of mobile payment and digital currency provides convenient payment conditions for online gambling, and the flow of funds is more diversified, which has brought new challenges to the bank's identification of the gambling related capital chain. The Administrative Measures for Bank Card Acquiring Business and other relevant laws and regulations clearly stipulate that banks and payment institutions engaged in acquiring business will be severely punished if they directly or indirectly provide payment services for gambling websites due to their failure to perform their duties.