The aim of this study was to determine the structural relationship between intrinsic and extrinsic motivation, attitudes toward knowledge sharing, perceived behavioral control, subjective norms, intentions of knowledge sharing and knowledge sharing behavior of teachers in female conservatories of Isfahan City, Iran. The sample size was 256 estimated through Krejcie andMorgan Sample Size Determination (1970). The questionnaires were randomly distributed among teachers. Data was gathered through Buck's subjective norms questionnaire (Buck et al., 2005), Kankanhalli's intrinsic and extrinsic motivation questionnaire (Kankanhalli, et al., 2005) and Hill (1987), Buck's attitudes toward knowledge sharing questionnaire (Buck et al., 2005), Chao and Hu's perceived behavioral control questionnaire (2001), Buck and Kim's knowledge sharing behavior questionnaire (2002). The results showed that the model fits well with the research data. It can be concluded, therefore, intrinsic and extrinsic motivation, attitudes toward knowledge sharing, perceived behavioral control, subjective norms, and intention of knowledge sharing are influential factors in teachers' knowledge sharing behavior.