The invention discloses a teaching workload management system in colleges and universities based on B/S structure, which includes a school-level management module and at least one school-level management module. The school-level management module is used to manage at least one school-level management module. The management module includes the workload calculation module, which is used to calculate the workload according to the workload calculation standard; the information management module, which is used for position and title management, college management, course management, teacher management and teaching task management; query and statistics module, which is used for Complete workload query and workload statistics; workload assessment module, used to complete the review of workload reduction and exemption, workload reduction and exemption application, workload assessment standards and workload assessment; system management module, used to complete basic information management and Message management. In order to ensure flexibility, the present invention ensures that all information involved in workload calculation and management is modifiable as much as possible, thus reserving a certain space for future upgrade and maintenance.