This study enabled a more fundamental interpretation of knowledge transfer phenomena in organizations by elucidating the causal relationships between individual psychological dimensions and knowledge transfer. Based on the fact that knowledge transfer is a phenomenon occurring in the bilateral relationship between a transferor and a recipient, and that the subject matter largely exists in the form of tacit knowledge that cannot be objectified in visible form, this study sought to explain the knowledge transfer phenomenon from the psychological attributes of the transferor as the knowledge-transferring agent. The analysis employed a two-step structural equation modeling approach to identify the multidimensional path relationships between the transferor's various psychological variables and knowledge transfer. The research results revealed that we-ness consciousness, ethicality, self-interest, and relational affect—excluding simple affect—had significant effects on knowledge transfer. Notably, in relationships where Korean-specific intimate we-ness consciousness (uri-uisik) is formed, any negative mechanisms lose their negative influence, and active knowledge transfer continues to occur. This study contributes to a more fundamental understanding of knowledge transfer by proposing a psychological model of knowledge transfer, which can provide a foundation for activating knowledge management in actual organizations. Furthermore, by explaining knowledge transfer phenomena unique to Koreans based on Korean indigenous psychology, this study is expected to serve as a stepping stone for cross-cultural comparative research.