Evidence has shown that Multisystemic Therapy (MST) has been particularly effective in the treatment of youth with antisocial behaviour from ethnically diverse backgrounds. Although the process of change within MST has been explored, there is a dearth of research in looking at this for families from ethnic minority backgrounds. This qualitative study aimed to explore ethnic minority caregiver experiences of MST and understand how this might impact on engagement, the presenting problems and the process of change. Semi‐structured interviews were conducted with seven ethnic minority caregivers who had completed treatment. A constructivist version of grounded theory was used to analyse the data. Specific cultural theoretical codes that emerged were around the consideration of cultural difference in terms of the engagement process, the conceptualisation of difficulties and the therapist acting as cultural broker in the process of change. This research integrates culturally specific ideas into the existing MST Analytical Process. Practitioner points Being culturally understood, cultural sensitivity and respecting difference can help engagement with ethnic minority caregivers The role of culture may be important to consider in the conceptualisation of difficulties For change to occur therapists may need to act as cultural brokers 多系统治疗（MST）中的文化因素对于参与和改变的作用 证据显示, 多系统治疗（MST）在治疗不同族裔背景的呈现反会行为的青少年时尤其有效。虽然已有究探索MST中的改变过程, 但是以少数族裔家庭为相关对象的究却很少。该质性究旨在探索少数族裔照料人对MST的体验, 并理解这一体验如何影响参与、主诉和改变过程。与七位完成了治疗的少数族裔照料人开展了半结构式访谈。数据分析运用了扎根理论的一个建构主义版本。数据得出的特定文化理论代码有关参与过程中对文化差异的考量, 对困难的念化, 以及治疗师在改变过程中充当文化中间人的角色。该究文化特定的观念与现有MST的分析过程相结合。 对实务工作的示 理解文化背景、文化敏感度和尊重差异能够促进少数族裔照料人的参与。 在将困难念化的时候, 要考虑到文化的作用。 要使改变发生, 治疗师需要充当文化中间人的角色。 关键词：多系统治疗；青少年犯；数族裔；文化；扎根理论