本研究主要透過跨國主義的概念，探索臺灣一點五代年輕移民在臺、澳兩地間的適應情形對回臺決策的影響。在方法上，針對22位曾居住於布里斯本、雪梨和墨爾本的年輕移民進行深度訪談，並將訪談結果加以群聚歸類，從「在澳洲的適應」、「回流過程」與「回臺後的適應」三動態移動過程，用矩陣將影響因素進行交叉分析，並以此建構一個關係樹狀圖，得以分析各影響因素之間的關係。發現影響年輕移民移動的因素包括社會環境、家庭與個人等不同尺度因素。因素間交互影響讓決策成為一個動態的過程，不但具有跨國性思維也受到社會網絡影響，而這樣的決策情形挑戰了傳統對回流定義的觀點。

The purpose of this research is to explore the adaptation and movement of 1.5-generation Taiwanese immigrants between Australia and Taiwan under the concept of transnationalism.A variety of research methods are used in this study to explore the research questions. These are followed by a series of in-depth interviews of twenty-two young Taiwanese immigrants who have settled in Brisbane, Sydney and Melbourne to investigate in detail the factors of decision making in the process of ”return.” The relationship among the factors is analysed by cross matrix, and the relation tree is formed to conclude the scenario.This paper has explored the adaptation experience of the 1.5-generation Taiwanese migrants in Australia and Taiwan. These migrants mainly interworked by different scale factors of ”Social,” ”Family” and ”Individual” and constructed in the dynamic process of moving decision while engaging in transnationalism. They also need to construct the social network for the home and host countries. The dynamic strategies of the young migrants behind the transnational movement challenge the traditional notion of ”return migration.”