在生活理性俗世化的衝擊下，傳統文化的整體性瀕臨瓦解，引發了現代文化認同的危機。本研究聚焦於俗世理性對於傳統客家文化發展的衝擊，以及在其引導下現代客家文化認同發展的特徵。研究方法採取深度訪談、田野觀察、參與觀察訪談等質性研究資料搜集策略，並經內容分析技術和三角交叉檢視。研究結果顯示，在俗世理性系統性的衝擊下，資本主義商品化導致傳統客家集體文化的消融、多元合理化的規範導致現代離心性的認同政治，研究並據此提出語言文化教育政策相關的建議。

As crises of modern cultural identity the traditional culture has been broken up under the impact of secular reason. This study therefore focused on the resulting impact on the traditional Hakka cultural development as well as its correlations with the characteristics of a representational collective culture. The qualitative research methods included in-depth interview, field investigation, participatory observation. The collective data were analyzed by content analysis and triangulation; the results show that due to commodity market capitalization, the traditional Hakka collective culture is disappearing due to the concomitant secular rational impact. Because of the diverse rational norms, an identifiable political situation and the core culture cannot be precisely identified. Based on the policies of cultural education learning, related proposals can be referred to and explicated.