This research is a quantitative descriptive study. The research sample were 58 students at SMPN-1 Mentaya Hilir Utara, Kotawaringin Timur Regency. The learning management instrument used an assessment questionnaire for planning, organizing, implementing, and evaluating learning which was assessed by 4 observers. learning outcomes were analyzed using classical assumption tests consisting of normality tests and homogeneity tests, as well as hypothesis testing using the Paired sample T test and Independent sample T test. The results of the study found that the management of online learning based on whatsApp social media was carried out "good" and the learning motivation of students was in the "medium" category. Online learning based on whatsApp social media has a significant effect on improving the learning outcomes of students' digestive system material, so it can be recommended as an alternative learning model during a pandemic.