Hukou is not a big problem. If you work in a foreign country, you need to open a temporary residence permit. Of course, it would be best if foreign units can accept your account. Since you want to resign and go abroad, you should first find a suitable unit in other places, sign a labor agreement, and then take the agreement with your original unit and new unit to Changsha Talent Center to open a business transfer letter, and then hand it over to the staff of the new unit. Ask them to transfer your file to the local talent market with this business transfer letter. If the new unit can solve the account, such as a collective account, go to the original unit to get the registration form of permanent residence, and then take the business transfer letter to the local police station to open the account transfer certificate. Remember that with this certificate, you can stay there if you meet the requirements, and you don't have to settle down first. You can keep it in your hand for a while. Settle down after the job is stable. If it is not settled through the company, it depends on the local settlement policy. If you meet the requirements, you can settle down. When the household registration is implemented, you can take the original ID card to the local police station to redeem it. The original ID card will remain valid until the household registration is implemented.