If a person works abroad, he can't buy a house with a bank loan in China according to the regulations of the bank, and he can't prove the income of the work unit where the house belongs (where the household registration is located) if he doesn't meet the conditions of bank loan;

See the bank loan regulations:

1. First-hand housing mortgage loan

The loan procedures need: the identity certificate of the lender's husband and wife, household registration book, marriage certificate, house ownership certificate (sales contract), land certificate (or copy), no house certificate, income certificate of the unit where the buyer's husband and wife are registered, and guarantee certificate of the guarantee company.

2. Second-hand housing mortgage loan

Loan procedures need: identity certificate of the buyer and seller, household registration book, marriage certificate, house ownership certificate, land certificate (or copy), sales contract, deed tax ticket, evaluation report, income certificate of the buyer's husband and wife's domicile, and certificate of no house.