The level of student satisfaction determines the quality of open university education and teaching. In the form of a questionnaire survey, a student satisfaction survey was conducted on 1140 students from Guangxi Open University. By comparing the satisfaction levels of different age groups in five aspects: learning support services, educational and teaching services, school brand promotion, examination and graduation services, and information support services, the effectiveness and shortcomings of the current student services in open universities were identified. Countermeasures and suggestions were proposed, including targeted guidance for different age groups in open education, establishment of network platform resource maintenance mechanisms, and strengthening the implementation of teaching practices in specific majors.