Questions about Caisse d'Allocations Familiales

Too many unknowns in your situation to be certain.

What sort of partner? (Spouse, recognized civil partner, other partner?) What sort of visa will you be in France on? What sort of assistance are you looking for? (Housing? Child benefit? Health care?) You say you'll be the only bread winner - do you have a job? What level of income are you looking at? Will you be paying cotisations into the French system? Do you have any transferable benefits or rights to benefits from the UK system?

All that sort of thing is taken into account.
Cheers,
Bev

If you're covered for your current employment in the UK, you should probably look into the unemployment benefit in the UK before you leave. (It may be possible to qualify for unemployment based on your having to give up your job to follow your partner.) If that is the case, you can use the UK qualification for benefits to sign onto La Pole d'emploi in France and continue your unemployment benefits for something like three months while looking for a new job.

I know some students here have qualified for the CAF housing benefit, though usually on their own. I suspect that chomage (unemployment) may be a better deal for you - at least for the first three months. The students who have been through here before also indicate that you have to get here and settled before the student in the family can apply for the CAF benefits, and that your partner's school may be able to provide more information.
Cheers,
Bev