Because of the close economic relationship between Hong Kong and the Mainland, commuting across the border is emerging as a common work/family arrangement among residents of Hong Kong. In 2005, the number of Hong Kong residents working in Mainland China was 237, 500, or 7.2% of the average employed population. Previous studies using clinical samples have focused on the detrimental influences of cross-border work arrangements on family relationships, especially extra-marital affairs. However, this pathological perspective overlooks the success possibly experienced by many of these families and their resilience resources. To address both the risks and the successes of the families, we adopted the ”family resilience perspective” as the conceptual framework for our study. Based on qualitative data from in-depth interviews with 20 families in which one or both spouses work on the Mainland, this paper discusses the impact of these cross-border work arrangements, including the crises and opportunities they create in relation to family adjustment.