Traditional cross-cultural value research predominantly employs static dimensional comparisons, examining what cultures value rather than how they actualize these values. This study explores a dynamic Life Value Realization Process Model through systematic cross-cultural analysis of Chinese and American obituaries. Employing Latent Dirichlet Allocation (LDA) topic modeling and narrative analysis on 1,732 Chinese and 1,732 American obituaries, we identified four key process dimensions: Relational Foundation (functional vs. ontological relationships), Motivational Drive (individual striving vs. collective dedication), Achievement Pathway (competence demonstration vs. character cultivation), and Transcendent Legacy (secular continuity vs. spiritual inheritance). Findings demonstrate that American obituaries more frequently emphasize individual-centered value actualization through functional relationships and competence demonstration, while Chinese obituaries show greater tendency toward relationship-centered value realization through ontological bonds and character cultivation. This framework may contribute to cross-cultural psychology by exploring dynamic processes alongside traditional value comparisons, potentially offering insights for intercultural understanding in an increasingly interconnected world.