can baby gives up japanese citizenship

my baby has japanese citizenship only even I am foreigner in Japan, but now I am about to devoice with her dad and bring baby back to my country, can baby gives up her japnese citizenship?

There is no need for your baby to do that at this point.

Does baby have dual citizenship?

divorcing the father has nothing to do with citizenship.. and also a baby cant make a competant decision about what citizenship it wants, so the government isnt going to allow you to choose it for them either. They have to make that own choice at age 20.

Be careful to go through a proper legal divorce. The last thing you want is the baby being taken away from you. Divorce isn't as simple in Japan as you may think it is.

According to the law, the baby's 'legal representative' can renounce the baby's citizenship. You have to first obtain citizenship for the baby in your home country.

She'll probably hate you for doing it but it looks like it can be done.

I don't have other choices, her father doesn't want to raise her while I want to, but my home country doesn't accept dual citizenship. What else can I do except giving up her japanese citizenship.

What is your home country? Is it China? Have you considered staying in Japan? That is possible, if you wish to do so.