Admission of new students is an activity that is usually done every year by all schools, both at the kindergarten level, elementary, junior and senior high school. So it is with SMA Negeri 1 Balapulang which annually receive new learners. Until now the processing of the value of prospective new students who register is still processed with Microsoft Excel. So, to improve the process of selection of new students required a decision support system for the process quickly and effectively. In this decision support system using Simple Additive Weighting (SAW) method. In this system there are several form inputs such as officer data form, form data capacity, form criteria, weight form value, form result rank and input form value.