Cooperative learning is a strategy implemented in the classroom whereby students complete learning activities in small groups and are subsequently rewarded or recognized based on the quality of their group's work. This study is a meta-analysis study that aims to determine the effect of cooperative implementation based on methods of cooperative learning, English skills, based on and school level in English language learning. This study analyzed 56 cooperative learning articles found in the GARUDA Journal database and undergraduate students’ theses by the issue date of 2013-2022. There were only 20 studies remaining to be analyzed furthermore. The result showed that the effectiveness of cooperative learning was 1.15 which is categorized as a strong effect. LT (Learning Together) method got the highest effect-size score than the other method of cooperative learning with 1.86 and also categorized as having a strong effect. Listening skill is a dependent variable that is most affected by the implementation of cooperative learning with effect-size of 1.90 Cooperative learning model also gives a measure of higher effectiveness in junior high school than in senior high school. This meta-analysis study provides information to English teachers in Indonesia to implement cooperative learning because the results show that the cooperative learning model is more effective to use in English Language Learning compared to the conventional learning method.