In order to balance the relationship between the protection of personal information and the use of personal information, the Personal Information Protection Law has set anonymization standards. Although, technically, absolute anonymity is not achievable, but the legal goals are not the same as the technical goals. In order to maximize social welfare, it is necessary to reduce the quality of anonymization to a certain extent to ensure the universality and speed of the personal information governance program. Therefore, it becomes feasible to realize the anonymization of personal information in law. In order to facilitate the anonymization of judgments, different jurisdictions have established different rational people standards under the guidance of value. The EU standard overemphasizes the protection of the rights of information subjects, which is not conducive to the use of personal information, and it is difficult to maximize social benefits. The Anglo-American standard takes into account both “security” and “efficiency”, while protecting the information subject, while leaving enough space for personal information processors. Among them, the United States compromises the adoption of abstract standards and specific standards, which overcomes the impracticality of adopting abstract standards alone. The shortcomings of non-predictability and other specific standards.