Can grandma move her granddaughter's account to Hong Kong?

Direct application is not allowed, only parents are allowed to apply for Hong Kong children, children apply for Hong Kong parents, and husband and wife reunite, and each has other requirements.

You can see if you can apply according to the curve, that is, look at the age of your granddaughter first. If she is below 16 (it was below 18 when she came back to apply for her ID card and home visit permit to settle down), we can see if her mother meets the requirements (over-age children and permanent children). If she meets the requirements, she can apply for the past and then come back to apply for a granddaughter in the form of husband and wife reunion.