If you have to find a school with a strong chemistry discipline in Xi 'an, it is Northwest University, but the overall strength and reputation of Northwest University are slightly weaker. In addition, although the discipline of chemical engineering and technology in Xi Jiaotong University is not strong, the chemical process machinery is still very strong, and the school is a 985 university, which has stronger reputation and strength and more high-quality employment opportunities. Therefore, compared with Northwest University, chemical machinery of Xi Jiaotong University is more recommended, but the real chemical discipline of Xi Jiaotong University is not as good as that of Northwest University.