In the education especially in English learning process, reinforcement is one of the important factors to encourage students’ motivation in learning English. Reinforcement can be defined simply as the response by one person to another’s action. Reinforcement is a process in which a consequence, a reinforcer is given following a desired behavior to increase the likelihood that the behavior will occur again. A good teaching and learning process is not only put the qualified teachers as a leader; the involvement of the students in that process can be described in interaction between the teacher and the students.

This research concerns with the problems, the kind of reinforcement that teacher use in teaching English, the impact after get reinforcement and the component of reinforcement can motivate more . The subject of this research was an English teacher and students of the Seventh D grade consists of 26 students in SMPN 1 Sungai Tabuk and the object of this research are Reinforcement that used by the teacher when teaching process and the students’ motivation in learning English. The researcher use three instrument for collecting the data, there are interview, observation and documentary.

The results showed the teacher used all variations of Reinforcement in teaching English: Primary and secondary Reinforcement, negative and positive reinforcement, all of components of reinforcements used by teacher: verbal, gesture, proximity and the other. The teacher just used one principle that was variety. Reinforcement actually had an impact on students’ motivation in learning English students paid more attention in the class when teaching and learning process, some students showed a great demand in doing a task, some students were more confident when practicing in front of the class, some students had learned enthusiastically and controlled their attention well. The most important component in motivating students in learning English is giving a gift to students the form of stationery and money