回複：私生子有沒有得到其生父child support的權利啊？

基本上 under 聯邦政府的Child Support Act 1991

An illegitimate child must also be treated in the same way as a legitimate child with regard to his/her rights of inheritance and intestate succession from both the mother and the father.
所以"是的"，私生子女有相同的權力來要求生父支付child support.