Human rights are universal and considered the birthright of every human being. And the Right to Health is one of the basic human rights that have been valued by international organizations in recent years. This study mainly explores the healthy right of low-skilled workers from Myanmar, Laos, and Cambodia in Thailand. Since 1990s, low-skilled workers entered Thailand bring rapid economic growth. Although these low-skilled worker brought economic growth, but most of them are illegal. Under the illegal situation, they are not protected by Thai government policy. It is also difficult for Thai government to make appropriate policy. In recent years, Thailand faced issues about the right to health of these illegal low-skilled workers in Thailand, not only these low-skilled workers cannot be fully protected under government’s policies, but also caused many problems in Thailand. On the other hand, in order to achieve the policy objectives of the WHO, Thai government has cooperated with international organizations to improve the low-skilled workers’ healthy right. Thai government actively establishes policies to convert illegal workers into legal status to let migrant workers can be included in the insurance system, but it is not successful. Up to date, it is about half of low-skilled workers included in the health policy. Cooperation between the Thai government and international organizations has achieved considerable results, but it just be regional assistance and cannot be fully implemented. This study explores the history of low-skilled workers in Thailand, the relevant conventions and resolutions of international organizations promoting the right to health, and Thailand’s current policy on health rights for low-skilled workers and cooperation with international organizations. Finally, put forward the research findings and recommendations of this study, hoping that the Thai government can eliminate domestic disputes as soon as possible, and pay attention to the implementation of the idea of low-skilled workers’ right to health as a practical action. The thorough implementation is the only way that low-skilled workers can completely owning the right to health.