[wrussell]

You can include your child (aged under 18) as dependant on a 189.
To remove the child you would need the consent of the non-custodial parent.
If your child is 18 or older, or if consent is not forthcoming, I suggest you consult a registered migration agent for advice about strategy.

 

[wrussell]

So, if non-custodial parent will not give me his consent, is it still a chance to take my son with us?

Yes.
May I suggest that you take professional advice about the Australian and local laws?