You can't. The main ATMs that can withdraw cash directly in Indonesia are CITIBANK, HSBC and BCA. You can see the logo of "UnionPay" on its ATM, which means that you can withdraw cash directly with the debit card of China UnionPay, but it is Indonesian rupiah, and RMB withdrawal is not supported yet. If you need to use the Indonesian rupiah, you can withdraw the Indonesian rupiah in this way, and the RMB in the card will be deducted after being converted at the corresponding exchange rate. There is also an ATM of BCA Bank at Jakarta Airport. But if you need to exchange RMB at the airport, there is no such thing.