The purpose of this paper is to evaluate the relationship between employees’ of East Azarbaijan Melli bank (zone 10) self-esteem and pertinacity. For this reason, employee’s self-esteem was arranged in two dimensions, which are consistency solidity, emotional inconsistency and pertinacity. The questionnaire is based on Kobasa theory including three sides including commitment, control and defiance. There are two basic and three subsidiary theories. Employee of East Azarbaijan Melli bank (zone 10) is statistical society of this research, which includes 80 people. Reference to restricted volume of statistical society, total statistical society is concerned as under evaluation society. The tool of data gathering is two questionnaires, which are Aizenc’s self-esteem questionnaire and Kobasa’s pertinacity standard questionnaire, which are delivered for evaluating society after perpetuity and justifiability determination. The descriptive statistical methods are used for collected questionnaires analyze. Thus, the descriptive statistical method was used to summarize, to categorize and to interpret statistical data’s. In addition, statistical tests such as Pearson and Freidman’s coherency R are used to test the hypothesis of research. The results indicate that there is a meaningful relationship between self-esteem and pertinacity and its sides on employees of East Azarbaijan Melli bank (zone 10). They present maximum relationship between self-esteem and pertinacity control and minimum relationship between pertinacity commitment dimensions.