This paper mainly make a theoretical research and exploration on software quality assurance quality assurance improvement based on CMM process, with the educational software quality assurance model as an example. It elucidates the relationship between educational software process improvement and quality assurance, and explicits the importance of educational software development process improvement to the quality of educational software. Additionally, it discussed the establishment of educational software development model on the basis of the waterfall model of traditional software development, and construction of process quality management models and platforms based on CMM educational software process improvement.