Support in couples living with type 2 diabetes is associated with better health outcomes but support provision in collectivistic cultures has received limited research attention. To address this gap, we focused on couple dynamics and support in type 2 diabetes in U.S.‐born Chinese Americans. Acculturation processes, particularly biculturalism, that is, the capacity to enact habits and practices from both the heritage and U.S. mainstream culture, were explored. Employing interpretive phenomenological methods, we conducted multiple narrative interviews with each of 15 couples regarding illness challenges and couple responses. Interviews were conducted in varied contexts, including with the couple, and in group interviews with people with diabetes or spouses. The unit of analysis was the couple, and narrative themes within the text were explored within the context of holistic couple summaries. We identified three key aspects of couple support: (i) Assisting with the diabetes treatment regimen; (ii) Moderating social and contextual factors that impede diabetes care; and (iii) Providing relational care and empathy for living with this challenging chronic condition. Support reflecting cultural maintenance of Chinese beliefs and practices include other directedness, family centeredness, and concerns for harmony and balance. Bicultural support patterns were also apparent in spousal communication that was both indirect and direct, and relationships marked by both interdependence and respect for independence or autonomy, reflecting both Chinese and U.S. cultural orientations, respectively. Working clinically with second and third generation Chinese immigrants requires clinical assessment of and responsiveness to couples’ acculturation levels and bicultural skills.