An exam has everywhere around the world. And Thailand has to take exams too . Education in Thailand is provided mainly by the Thai government through the Ministry of Education from pre-school to senior high school. Thai government gives important with exam. Thailand has many exams such as entrance exams, O-Net (Ordinary National Educational Test) , in one semester has 2 times is midterm exam and final exam and etc. Testing in Thai school is usually done for purposes of assessment, to assign students grades (from tests in classrooms) or rank them in terms of abilities (in standardized tests).There are many reasons for students that are should to have exam in Thailand.