Based on the three dimensional model of the emotional intelligence (EI), this study develops a questionnaire about emotional intelligence of employees. The empirical study indicates that three dimensional model of emotional intelligence is scientific, reasonable and practicable in organizations and the questionnaire has acceptable indexes of psychological measurement. The result of the questionnaire analysis indicates that EI varies evidently in gender, age, educational background and the duration of being employed. Some explorative analysis of variance is undertaken in this article.