Intergenerational knowledge transfer (IGKT) is an effective method to prevent corporate amnesia, and to achieve knowledge continuity. Senior employees’ intergenerational knowledge transfer intention (IGKTI) is the premise of the initiation of IGKT. Based on the generativity theory, this paper proposed that the basic psychological needs of human (such as need to be needed, symbolic immortality and meaning in life) are the important driving factors of the senior employees’ IGKT. PLS analysis of survey data showed that, need to be need affects IGKTI of senior employees directly; symbolic immortality hasn’t a direct effect on IGKTI of senior employees, but has an indirect effect on IGKTI of senior employees through the mediation of need to be needed; meaning in life affects IGKTI of senior employees directly and indirectly through the mediation of need to be needed. This study contributes to IGKT theory and practice.