"Engaging in the work of finance" refers to: 1. engaging in the business of a bank, insurance institution, futures company, credit cooperative institution or non-banking financial institution;

Five kinds of commercial Banks that are state - owned bank, joint - stock commercial bank, city commercial bank, town - country credit cooperative and foreign venture (joint venture) bank.

The paper starts with the special nature of cooperative banks, analyzes the bank governance mechanism of cooperative banks (credit unions).