Sincerely ask legal professionals, is it legal for Ordos Rural Commercial Bank to deduct the previous salary? See the supplementary question for details.

It is illegal and violates the labor contract law.

The agreement is that the risk loss within the scope of (employee's) duties is abnormally exposed, and the performance pay can be recovered. Performance pay is equivalent to bonus, which is equivalent to depriving you of the right to pay.

If Party B resigns voluntarily, Party A has the right to recover the paid performance salary in proportion to Party B's service years, which is the right of the employer to exempt itself from legal responsibility and exclude the workers. According to Article 26 of the Labor Contract Law, this agreement is invalid. Any dispute over the invalidity or partial invalidity of a labor contract shall be confirmed by the labor dispute arbitration institution or the people's court.

"I heard that rural commercial banks are very powerful, and giving gifts to court leaders can turn black into white." If the first trial fails, you can go to the intermediate people's court for a second trial. If it is a bribe given by the rural commercial bank to the court leaders, you can apply for a retrial, and the retrial can be a second instance. You can also report to the procuratorate that the person in charge of the rural commercial bank and the court leader will be investigated for criminal responsibility for accepting bribes. So you can rest assured.