Is there a SMS prompt for the activation of China Postal Savings Card?

There will be a reminder. Generally go to the nearest postal savings bank outlet and open an account with an ID card. Then when you apply, the teller will ask you to provide your mobile phone number. This is the default SMS reminder service.

If you already have a postal savings bank card, you still have to go to the counter, bring your ID card and handle the SMS reminder service directly.