Undergraduate course: generally refers to undergraduate course, which is the basic component of higher education. Students can get an undergraduate degree after completing undergraduate courses; College: focus on cultivating practical and skilled talents, with a general academic system of 2-3 years, and obtain a college diploma after graduation; College: usually refers to college education, corresponding to undergraduate education.

There are some differences among undergraduate, junior college and junior college in education level, educational system, training objectives and employment direction.

1. Education level: Undergraduate course belongs to the higher level of higher education, while junior college and junior college are generally regarded as the lower level of higher education.

2. Academic system: 4 years for undergraduate students and 2-3 years for junior college students.

3. Training objectives: Undergraduate courses focus on cultivating students' comprehensive quality and professional knowledge, while junior colleges focus more on cultivating students' professional skills.

4. Employment direction: Undergraduate graduates may be more competitive in the job market and have more opportunities to engage in R&D and management; College graduates are mainly oriented to technical and applied jobs.