Background: Emotional maturity is a condition in which a person can adapt to any situation so that a person can control and control their emotions under certain conditions. New collaborative skills will arise when people realize that people have the same interests for a particular purpose. This study aims to determine if an association between emotional maturity and the ability of cooperation of the Pasukan Penanggulangan Huru-Hara SAT BRIMOBDA POLDA D.I. Yogyakarta. The subjects of this study were Pasukan Penaggulangan Huru-Hara SAT BRIMOBDA POLDA D.I. Yogyakarta The data of this study was collected by distributing questionnaires directly to the research topics. Objectives: To analyze a relationship between emotional maturity and the ability of cooperation of the Pasukan Penaggulangan Huru-Hara SAT BRIMOBDA POLDA D.I. Yogyakarta. Methods: This research was conducted at Markas Komando Brimob POLDA D.I. Yogyakarta in Gondowulung, Bantul, D.I. Yogyakarta with observational research. The approach for this study using cross-sectional design Results: From the above results, the correlation coefficient value is 0.435 with the sig., Of 0.000. Because of the value of Sig. At a confidence level of 95% (0.05), which is 0.000 <0.05, it is concluded that there is a relationship Conclusion: There is a connection between emotional maturity and the ability to cooperate in Pasukan Penaggulangan Huru-Hara SAT BRIMOBDA POLDA D.I. Yogyakarta