Collaboration skills is one of the most important skills in the 21st century. Collaboration is an effort to achieve common goals that have been determined through the division of tasks / works, not as a work group but as a work unit, all of which are directed towards achieving the goals. This study aims to describe the collaboration skills of XI students at SMA Islam BAWARI Pontianak on reaction rate material. Indicators of collaboration skills are contributions, time management, problem solving and working with others. This research uses a descriptive method. The subject of the research was the XI grade students of SMA Islam BAWARI Pontianak in the academic year 2019/2020 which consisted of 35 students. The instrument used was the student collaboration skills assessment sheet and interview guidelines. The results show that the collaboration skills of XI grade students based on the categories of highly skilled, skilled, and moderately skilled skills are 31.4%, 40% and 28.6%. Each indicator show that the level of collaboration skills of contribution, time management, problem solving, and working with others are respectively 74.3% (skilled), 67.8% (skilled), 73.6% (skilled) and 71.4% (skilled).Keyword: Collaboration Skills, Contributions, Time Management, Problem Solving, Working With Other