Positive classroom environment is a good environment to make the goals of learning process can be achieved. In building a positive classroom environment, teacher are may not merely use of teachers’ roles. Cooperative learning can help the teacher in classroom learning activities. In small groups, students can share and complete the goal of learning together with other students in the same class. The research is conducted on the even semester of 2018/2019 academic year in SMP Panca Jaya Surabaya. The students were given a questionnaire about Positive Classroom Environment and Cooperative Learning Strategy. Then all the students were given reading test to know the level of reading comprehension of each student. Using multiple regression analysis, it was proved at a significant level 0.004. Those variables have a medium positive correlation. Students who have a high level positive classroom environment and cooperative learning strategy have a good achievement. Thus, the alternative hypothesis was accepted. Suggestion proposed on the basis of the result is addressed to EFL teaching practitioners as well as other researchers who want to conduct positive classroom environment and cooperative learning research. The writer hopes that there will be another research discusses it
