Divorced, want to move Chengdu hukou back to Leshan.

I can tell you for sure that you can move back to Leshan. First of all, you have to go to Leshan, the police station where your parents' household registration is located, apply for moving in, get approval, and apply for a certificate of moving in. Then move out of registered permanent residence, your current residence in Chengdu (the police station where your registered permanent residence is located), get permission, go through the proof of moving out, and your ID card, divorce certificate and other related materials, and settle in Leshan. The above is for reference only! The details are still unclear. You can go to the public security account management office for careful consultation.