Under normal circumstances, graduates from Binhai College of Nankai University can't continue to log on to the educational administration system of the school. Under normal circumstances, the school's educational administration system is only open to students, providing educational administration, student status information query and other functions. Once they graduate, their identity will be revoked, and accordingly, they will lose the right to log in to the educational administration system.

However, it should be noted that the policies of each school may be different. Some schools may give graduates access to the educational administration system for a certain period of time, so that they can query the information they need, such as graduation certificates and transcripts. But even so, there is usually a time limit. After the time limit is exceeded, the school will cancel the login authority of the graduate educational administration system.

Therefore, if you are a graduate of Binhai College of Nankai University and want to continue to use the relevant functions of the educational administration system, I suggest you consult the academic affairs office of the school or relevant departments to understand their specific policies and regulations. They can give more accurate answers and guidance.