First of all, from the perspective of educational objectives, undergraduate education is mainly to cultivate students' basic knowledge and skills, so that they have certain professional quality and innovation ability; Master's education pays more attention to in-depth academic research and practical ability training, aiming at enabling students to independently carry out scientific research or solve practical problems; Doctoral education is the highest academic education, which mainly cultivates high-level talents with innovative spirit and leadership ability.
Secondly, from the perspective of curriculum, undergraduate courses are relatively simple, mainly including public basic courses, professional basic courses and elective courses; Master's courses are more in-depth and specialized, requiring students to master more theoretical knowledge and research methods; Doctoral courses are more free and flexible, and students can choose corresponding courses according to their own research direction.
Third, from the perspective of academic system, the undergraduate course is usually four years, the master's degree is two to three years, and the doctoral degree is three to five years. In addition, different countries and regions have different requirements and standards for these three levels of education.
Finally, from the perspective of employment prospects, undergraduate graduates can choose to continue their studies or directly find employment; Master students are more suitable for scientific research, teaching and other work; Doctoral students are more likely to become leaders in academia or industry.
To sum up, although undergraduate, master and doctor are all part of higher education, there are obvious differences in educational objectives, curriculum, educational system and employment prospects.