It is written on the pill box that generic drug consistency evaluation is the principle of quality and efficacy consistency with the original research drug, in stages and batches for quality consistency evaluation. Pill box written on the generic consistency evaluation, is already approved for marketed generic drugs according to the principle of consistency with the quality and efficacy of the original drug quality and therapeutic efficacy of the principle of quality consistency evaluation in phases, in batches, that is, generic drugs need to be in the quality and efficacy to achieve the same level of consistency with the original drug, and consistency evaluation of the generic drugs that have been approved for marketed. Because in the past, there was no mandatory requirement for the consistency evaluation of drugs approved for marketing with the original drugs. In recent years, the consistency evaluation of generic drugs has been carried out, which can make the generic drugs consistent with the original drugs in these two efficacies. It can replace the original drug in terms of action, which not only saves medical costs, but also improves the level of the quality of generic drugs in China.