This research aims to describe the application of the principle of cooperation in the bahtsul masa’il activities at Darussalam Blokagung Islamic Boarding School. The research method employed is qualitative descriptive with a pragmatic approach. The data consists of linguistic data, namely oral conversations during the bahtsul masa’il activities at Darussalam Blokagung Islamic Boarding School, which have been transcribed into written texts. The data sources are from three sessions of bahtsul masail activities held on December 27-28, 2022. Data collection techniques include free listening, free speech, and note-taking. Data analysis techniques involve organizing, sorting, identifying patterns, and determining important points to be conveyed to others. The results of the research show compliance with the principle of cooperation in 42 instances and violations in 45 instances, encompassing the maxims of quantity, quality, relevance, and manner. Factors contributing to compliance with the principle of cooperation in the bahtsul masa’il activities at Darussalam Blokagung Islamic Boarding School include striving to provide sufficient information, ensuring smooth information flow, maintaining the continuity of information exchange, delivering quality information, respecting opinions, keeping conversations effective, keeping conversations relevant to the topic, maintaining the continuity of information exchange, achieving mutual understanding, providing clear information, and understanding the topic. Factors contributing to violations include clarifying information, boasting, criticizing, lacking understanding of the topic, disagreement, lack of coordinated understanding, changing the topic, providing affirmations, and hesitancy.