The Aim of this research is to increase the character and the interest in Studying for the students of class XI IIS 1 SMA Negeri 1 Surakarta, by integrating nasionalism values by using cooperative learning model in the history learning. The research is a classroom action research or Penelitian Tindakan Kelas (PTK ). There are two cycles in applying of the research, by having each cycle consists of planing, action, observation, and reflection evaluation. The subject of this research is the students of class XI IIS 1 SMA Negeri 1 Surakarta, with the total of 24 persons. The data resource is from the teachers, students and the learning proceses. The techcnique of collecting data is done by observation, interview, questionnaire and documentation. The validity test is using triangulation technics that is data triangulation and method. The analyzing of the data is using analyzing technique of qualitative descriptive. The research procedure is using cycle PTK model that is developed by Suharsimi Arikunto ( Planning, Action, Observing, Reflection) The result of the research is indicating that a teacher can be categorized in having ability in integrating of nasionalism values by being well in the cooperative learning model, so the process of learning can run well. The implementation of nasionalism values by having cooperative learning model can increase the character and the interest in the history learning of the students of class XI IIS 1 SMA Negeri 1 Surakarta that is from pre cycle to first cycle and from the first cycle to the second cycle. The character of the pre cycle students is 74% increasing to 81.6% on the first cycle, and on the second cycle increasing to 83.2%. The interest of the student in the history learning is on pre cycle is about 77.1% that is increasing to 81.9% on the first cycle and increasing to 84.4% on the second cycle. Based on the result of the research and the above discussion we can conclude that the implementation in the history learning is integrated by nasionalism values that is by having cooperative learning model so that it can increase the character and the learning interest of the students of class XI IIS I SMA Negeri 1 Surakarta.