The purpose of this paper is examination the relationship between task performance and job crafting with the mediating role of job flourishing. So from 450 managers of insurance banks, 207 persons selected with stratified sampling according to Kurdistan counties by using kocran’s formula. This study is an applied research and the method is correlational research component and the data collection method was a quantitative research. Measurement tools are standard questionnaire. First Face validity confirmed by related professors of university. Spearman correlation tests were used to test hypothesis relationships. Results show that there is a meaningful positive relationship between job crafting and job flourishing and also there is a meaningful positive relationship between job flourishing and task performance.