The salary of the librarian in Huazhong University of Science and Technology is 4500 yuan per month. According to relevant public information, the salary composition of Huazhong University of Science and Technology for librarians is: basic salary of 3,000 yuan per month, attendance award of 1 1,000 yuan per month and post allowance of 500 yuan per month. After calculation, 3000 plus 1000 plus 500 equals 4500 yuan per month.