It is necessary to impose trading restrictions on members of Congress. Members of Congress are at the core of decision-making and hold a large amount of insider information. Without trading restrictions, they are likely to exploit their positions for personal gain, harming the public interest and undermining the principles of fairness and justice. Reasonable trading restrictions can prevent rent-seeking and maintain the credibility of the government. By limiting specific transactions such as stocks and bonds, it ensures that members focus on public affairs decision-making and avoid conflicts of interest. However, formulating and enforcing such restrictions faces issues like the difficulty of defining standards and the complexity of supervision, requiring continuous improvement of rules and regulatory mechanisms.