Investment in bond trading accounts for a significant proportion in the business and investment activities of commercial banks, it not only brings profits to commercial banks but also plays an important role in the bond market and the growth of the bond market. socio-economic development of each country. With new changes in the economy recently: the economic crisis, the covid 19 epidemic has had a significant impact on business strategies as well as changing orientations in legal policies of countries. On the basis of information, secondary documents, financial statements on business activities of commercial banks and legal policies, the article approaches from the practice of bond investment activities of commercial banks. Trade in Vietnam from the perspective of commercial banks' freedom to do business and the central bank's control mechanism, thereby proposing solutions to improve the law on bond investment activities of commercial banks. while ensuring freedom of business towards the goal of sustainable development and ensuring the safety of the banking system and the economy.