1, different levels: the department is the teaching administrative organization set up by colleges according to the nature of their majors, while the college is an open interdisciplinary organization beyond the college level.

2. The functions and tasks undertaken are different: the departments of universities mainly undertake tasks such as organizing teaching and personnel training, specific scientific research projects and laboratory construction, while the functions and tasks undertaken by colleges have a great extension, extending to the fields of high-level personnel training, discipline construction, scientific research and technology development.