The purpose of this paper is to determine the optimization of student character values through process-based learning skills in class IX of SMP Negeri 1 Pulau Rakyat Asahan. This research was conducted at SMP Negeri 1 Pulau Rakyat Asahan. The research method used was to provide questionnaires, literature studies and documentation. From the results of the research and discussion, it can be seen that the decline in behavioral values in society can be actualized through the tendency of non-educational behavior that is increasingly concerning, such as: violence, anarchy, pornography, corruption, acts of terrorism, to various modes of crime through information technology systems. This indicates that efforts to build character through the development of moral values integrated into learning in schools have not been successful, there are still many teachers at various levels of education in the learning process using lecture methods, textual and less based on scientific processes. One of the contributing factors is because the teacher's understanding of the lesson itself is not correct, as a result the material taught has not been taught in accordance with the nature of learning which refers to the process and product but only as a product (content). Process skill-based learning is learning that develops various skills such as: observation, classification, interpretation, prediction, asking questions, hypothesizing, conducting experiments, communicating experimental results (communication), so that students can have the experience of activities that involve cognitive skills (minds on), manual or psychomotor skills (hands on) and social skills (hearts on). Through learning material based on process skills, it is expected that various scientific attitudes can be developed such as: patience, honesty, thoroughness, tolerance, etc., which are the basic capital in building student character optimally. However, implementing learning material based on process skills requires the support of teacher readiness, both in determining strategies and learning instruments