This paper focuses on the meanings of home and self-identity perceived by mainland Chinese dual migrant workers in Macao. Due to the high living cost in Macao, a majority of mainland Chinese labour migrants choose to migrate daily across the Zhuhai-Macao border. Drawing upon fourteen in-depth interviews and two group discussions conducted among low-skilled labour migrants from the mainland, findings show the co-existence of temporality and situatedness in the mobilized experiences of mainland Chinese dual migrants. Home is found to be both an emotional and social investment, tied to a fixed, remembered space, and a mobile, multi-layered, and unstable site, impacted by the experience of daily cross-border mobility. Impacted by the Zhuhai-Macao border, participants may self-identify as “outsiders” to Macao, who “belong” to a place in mainland China due to the perceived hierarchy in Macao society. However, this identification is fluid and dynamic, and changes within and across social groupings and settings.