Life insurance industry now trends into more of a shape of financial-holding firm. It is necessary to reach a stage of one-stop shopping and diversified marketing strategies via integration of financial products, thus strengthen the social network relationships between people. In focus on life insurance salespersons? persistent need to establish their personal social network for achieving the best job performance, and rarely in the past the external social network relations having been studied, was it how this study motivated. This study aims to explore the effects of internal and external social network on job performance for life insurance sales. This study is based on the researches of literatures to establish the concept of preliminary study, and conducts exploratory, in-depth interviews on life insurance salespersons for clarifying the relationships between various variables of research framework, thus posits hypothesis of the study. Objects of this study include 39 persons of certain communication agency of life insurance system affiliated to a financial holding?s firm. The data were collected via questionnaires, and both social network software UCINET6.212 and social science software SPSS 12.0 were used to progress empirical research. Hypothesis of the study was also examined. It concluded as follows: 1. Internal social network has a significant effect on job performance, among it the information network has a positive effect on objective performance, but no significant effect on subjective performance. 2. External social network has a positive effect on job performance, and it has a significant effect on objective performance, but no significant effect on subjective performance. 3. External social network has a rather significant effect on job performance than internal social network has.
