1、 Legal framework and objective assessment
To evaluate the legality of IVF law, we first need to examine the rationality of its legal framework and legislative objectives. Whether the legal framework is perfect, specific, transparent and in line with the needs of judicial practice is the key to the evaluation. A perfect legal framework should include the ownership of relevant laws, the definition of the relationship between rights and responsibilities, the norms of procedural provisions, and the protection of the rights and interests of different participants, so as to ensure that IVF behavior is correctly regulated at the legal level.

The objective evaluation mainly involves the rationality and scientificity of the legislative purpose. Considering that the IVF law is usually aimed at solving the problem of infertility, protecting the rights and interests of reproduction, promoting scientific and technological progress and social progress, the evaluation of legitimacy should be conducted for these purposes. In addition, legislative objectives must conform to the principle of the rule of law and must not violate the basic principles of fairness, justice, human rights, etc.
At the international level, we can refer to relevant international conventions and the positions of international organizations, such as the relevant resolutions of the United Nations Commission on Human Rights and the guidelines of the World Health Organization, to assess whether the law on IVF is consistent with international standards.
2、 Ethics and public opinion evaluation
Ethics and public opinions should also be taken into consideration in the evaluation of the legality of IVF laws. IVF technology involves sensitive issues such as the origin of life, human identity, family relations, etc. Therefore, whether the law is based on ethics and morality, and consistent with social customs is an important indicator of legitimacy evaluation.
Readers should pay attention to the public's attitude and views on IVF, including the tendency of public opinion, the research and views of experts and scholars, and the views of civil society groups. Through research, public opinion polls and other methods, we can understand the public's support, concerns and opinions on the IVF law, so as to evaluate its legitimacy.
In addition, it is also necessary to assess whether the law can respond to the concerns and criticisms from all walks of life, and whether it has established an effective regulatory mechanism and relief channels to protect the legitimate rights and interests of all parties.
3、 Medical Science and Practice Assessment
The legality evaluation of IVF law also needs to examine the current situation of medical science and practice. First, the safety and feasibility of IVF technology itself should be evaluated, including the risk assessment of embryos and pregnant women, and the standardization and controllability of technical operations. This can be assessed through expert consultation, medical research and relevant experiments.
Secondly, it is necessary to investigate the qualification and standardized operation of hospitals and doctors, including the proficiency of surgical techniques, the completeness and safety of medical equipment, and the management system and specifications of hospitals. When evaluating the legal legitimacy of IVF, we can refer to the practice of some famous hospitals that actually exist.
In addition, attention should be paid to the development and application status of IVF technology, including therapeutic effect, affordability and accessibility. Only when IVF technology has certain scientific and practical achievements can its legal legitimacy be evaluated.
4、 Social Impact and Effect Assessment
The last aspect is to evaluate the social impact and effect of IVF law. The assessment should focus on whether the expected goals of the law have been achieved, such as increasing fertility opportunities and solving the problem of infertility. At the same time, we should also consider the unexpected impact of the law, such as whether it causes disputes, whether it affects social security, family relations, gender equality and other aspects.
Whether legal IVF technology and its application are in line with the long-term interests and economic benefits of society should also be the content of evaluation. When evaluating the legality of IVF laws, attention should also be paid to the operability and sustainability of laws, that is, whether they can be implemented and maintained.
To sum up, the evaluation of the legality of IVF laws requires comprehensive consideration from the aspects of legal framework and objectives, ethics and public opinions, medical science and practice, social impact and effects. The IVF law can only be considered legal if all aspects of the assessment are legal, reasonable and appropriate.