First Minister Rhodri Morgan announced plans for the measures on Wednesday as he opened the parliament for the new session.
Under the plans, councils together with all other public bodies will have a duty to both improve measures for child poverty and demonstrate their commitment to it, an Assembly spokesman said.
Reforms to the statementing system are expected to extend to children as well as adults the right to appeal against council decisions as well as greater advocacy rights.
In order to bring in these laws, the assembly will have to request new powers from the UK parliament. It is the first time it has done so.
The assembly also wants to introduce a unified system for charges for domiciliary care across the country.