ท As for the scope of discrimination in human right laws context, this research found that the “Discrimination” was used in several perspective in Thai legal system. The research then classified, by using human right laws framework, the use of such term in 3 cases; (1) differentiation of treatment falling within the scope of “Discrimination” and the one which is not “Discrimination” (2) the overlapping between the practices that falls in to the scope of “Discrimination” and the practices that violate other human rights such as personal right, freedom of religion, freedom of education and right in criminal justice system (3) “Unfair Discrimination” in the context of administrative laws which has different scope because it was based on different concept. According to such classification, the research would focus on the “Discrimination” falling within the scope of human right laws and explore whether such discriminatory practices could be sufficiently covered under existing laws of Thailand. However, the results showed that the existing laws were insufficient by classifying this part of results into 3 findings; Firstly, the analysis of “ground of discrimination” classified the issue in 4 cases; (1) Grounds of discrimination covered in Thai laws which were broader than international human right laws (2) Grounds of discrimination covered in Thai laws which were narrower than international human right laws (3) Grounds of discrimination which were argued as ambiguous and the more interpretation was necessary (4) Grounds of discrimination which were not explicitly addressed in international human right laws but were clearly covered by some foreign laws such as “criminal record”. Secondly, the scope of Thai laws relating to anti-discrimination, although there were specific laws in recent Thai legal system that can be applied to prohibit “Discrimination”, this research indicated that the problems of content, element, and scope of those laws make them inappropriate and insufficient to protect personal from discriminatory practices. The discriminatory practices which have not yet been covered were, for example, discriminatory practices in private sectors including employment, goods and service, discriminatory practices relating to certain grounds such as criminal record, breastfeeding, etc. Furthermore, there are no specific laws to apply in case of “Harassment” and “Hate Speech”. Thirdly, according to the comparative analysis of foreign laws relating to antidiscrimination, this research developed “Model of Discrimination Law” which comprise 3 models; (1) Providing one comprehensive piece of legislation covering all grounds and areas of discrimination (2) Providing several specific laws for separate grounds and areas of discrimination (3) Providing both one comprehensive law and additional specific laws for certain areas or grounds of discrimination. The results found that currently Thailand was classified into model 2 but the existing laws were not sufficient as discussed.