Students studying abroad often only consider whether the school is good or not, but often ignore the major of the school. A good school is important, but a good major is more important to the future and employment of international students. There are seven national universities in Ireland, but each university has different advantages. Many people may enter the school only to find that their chosen major is not the advantage of the chosen school, and they will always feel regret and loss. After all, the advantages of the school will provide more paid internship opportunities and invested education quality and facilities, and these majors are often lacking or in great demand in the Irish market, making it easy to find jobs. This paper introduces the advantages of seven national universities in Ireland for your reference. Trinity College, University of Dublin has advantages in literature, drama, law, dentistry, education and environmental studies. Advantages of Dublin City University in Ireland: natural science, applied physics, biotechnology, instrument manufacturing, chemistry, French, computer science and other science and engineering disciplines. Advantages of Irish National University, menu: finance, computer science, biotechnology, electronic engineering and media research. Advantages of University of Cork in Ireland include biotechnology, biomedicine, computer and information technology, food science, photonics and nanotechnology. Advantages of Dublin University in Ireland include banking and economy, accounting, marketing, human resources, international business, pharmacy, computer, environmental architecture, sports and leisure management, etc. Advantages of National Galway University of Ireland: teaching in the fields of medicine, biological sciences, economics, business, digital technology, marine science, environmental change, human rights, innovation and structural change. The dominant majors of the Irish National university of limerick include computer science, software engineering, finance, management of multinational companies, English teaching, international tourism, applied physics, chemical engineering, information and network security, etc.