This study has been implemented to evaluate the psychometric characteristics of the Positive Psychological Capital Scale. The population of this study consisted of all staff of six education districts in the year of 1394 that 325 of them were sampled by share-based stratified random sampling based on sample size formula, Cohen et al (2000) and were taken Positive Psychological Capital Scale Luthans et al (2007). Research used Cronbach's alpha coefficient for the reliability, and confirmatory factor analysis for the validity based on Structural Equation Model. Cronbach's alpha coefficient for positive psychological capital scale was 0.89 and for optimism, hope, resilience, and self-efficacy subscales in order were 0.70, 0.83, 0.73, and 0.87. results of one factor and four factor confirmatory analysis based on Luthans et al theoretical model showed that four factor model has more favorable goodness of fit indexes than one factor model. Fit indexes are favorable. The correlation between total positive psychological capital scale with optimism, hope, resiliency and self-efficacy factors respectively is 0.76, 0.87, 0.88, and 0.84, which shows a good validity. The correlation between the factors is between 0.41 and 0.62, which is significant at level (P<0.01). In order to evaluate the differential validity of the positive psychological capital scale, simultaneous implementation of Counterproductive Workplace Behavior (CBW) scale was used. The result showed that the positive and negative anticipatory capital scale had a negative correlation (-0.39). There is no significant difference between the positive psychological capital of the staff of the six education areas at level (P<0.05), but there is significant difference between the level of psychosocial capital of the male and female education staffs in the level (P <0.05). Based on these results, this scale which has reliability and validity can be considered for future researches.