From the perspective of personality framework, the mediating effects of personality dynamic variables (values and motivation) on the relationship between personality traits and contextual performance were tested in 291 employees in different foreign enterprises in China through questionnaires. The results show that 1) competence and growth values mediate the effect of Big Five on contextual performance; 2) status and independence values (indirectly through intrinsic motivation) mediate between openness, conscientiousness and contextual performance; 3) intrinsic motivation mediates between competence and growth values, status and independence values, and contextual performance.