The paper studies the adaptive learning content organizing and difficult knowledge's diagnosis algorithm. At first, it discusses the granularity of learning resources, the adaptation of application environment, the evaluation of learning outcome and personalized choice of learning resources. Secondly, it designs learning content level framework, which takes knowledge point as the meaning unit. The third is to provide the basic scheduling model for learning content organization. The model involves in pre-test, survey, knowledge point scheduling modules, summary, post-test and evaluation. Learni...