联合国警察的任务是通过支持处在冲突中、冲突后及其他危机局势中的成员国，实现有效、高效、具有代表性、反应性和负责任的警察服务，服务和保护民众。为此，在遵守法治和国际人权法的前提下，联合国警察建立和支持，或者在获得授权的情况下，替代或部分替代东道国警察能力，预防和侦查犯罪，保护生命和财产，维护公共秩序和安全 (S/2016/952)。
"Your work is a crucial part of the picture — ensuring that police represent and are responsive to the communities they serve, including women and marginalized groups. Advancing accountability. Fulfilling our mission lawfully and humanely." - UN Secretary-General António Guterres opening the 16th UN Police Week.
