父母探亲签证时间很长，也只能待90天？

如题， 是不是说不管签证给了多长时间，都只能在最多待90天？

yes.  max stay is 90 days each time. they can come for a second time if the visa is still valid.

ok, thanks. and there should be a 90 days gap between 2 times visiting , right?

so if the visa is only 9 month validation. can my mother come two times and each time 90 days without extra visa application? curious because in the visa mentioning 90 days during stay. Is it the total days during the 9 month or just for each time stay?

There's also the times mentioned on the visa.If it is two or multiple,your mother can come to Netherlands more than one time,otherwise no matter how long the duration of visa,She only can come here one time.