How do Vietnamese send money to China? What method is better?

You can withdraw money in China with your VISA card, but you have to pay a handling fee. I suggest you use Guangxi Beibu Gulf Bank Card (VIP card of this bank is the best, because it is free of formalities all over the world), and credit cards of other banks are also acceptable. Guangxi Beibu Gulf Bank is located in East Asia. You can also go to Jinma Road in Hanoi (the first floor of Daewoo International Hotel in Hanoi), and the Industrial and Commercial Bank of China-Hanoi Branch will also do. In Ho Chi Minh City, more China banks (Bank of China, China Construction Bank, etc. You can send money back to China.