Supervisory coercive measures serve as critical instruments for supervisory organs in case investigations, demonstrating substantive distinctions from criminal coercive measures in terms of the nature of such measures, applicable targets, and procedural application. Supervisory compulsory measures, as an important component of supervisory power, possess distinct political attributes, legal attributes and public power supervision attributes. In the domain of procedural safeguards, these measures propel the progress of investigative procedures, protect the lawful rights and interests of subjects under investigation, and ensure effective procedural articulation. Pertaining to evidentiary collection, they lawfully secure control over subjects and obtain evidence, enhance investigative efficiency and accuracy, while safeguarding the legality and impartiality of investigative acts. The application of such measures constitutes a restriction on the investigated person’s right to personal liberty, directly producing legal effects that interfere with fundamental rights. Their application must adhere to the principle of legality. Specifically, the application of supervisory compulsory measures must conform to the requirements of a statutory basis, necessity, and legitimacy, strictly follow legally prescribed procedures, and must not infringe upon the lawful rights and interests of the persons under investigation. Thereby, the work of supervision shall be advanced in a standardized, law-based, and regularized manner.