Using this large-scale and complex data from the perspective of AI, and inferring students' learning needs by analyzing students' learning behavior data, psychological capital can significantly predict the psychological harmony level of military officers and soldiers, and can explain 30.3% of the variance of psychological harmony. Psychological capital has a partial mediating effect between emotional intelligence and psychological harmony, and the mediating effect accounts for 72.64% of the total effect. Provide students with different levels of claws beyond the basic content, biochemical learning content and assessment indicators, and the commonly used MHC prediction algorithms SVMHC and SYFPEITHI have better prediction accuracy. Influence of test data set size on test results.