Based on the construction of structure model about the influence of organizational culture identity on the organizational commitment,the empirical analysis of its influencing mechanism was carried out through the questionnaire. It is found out that organizational culture identity includes two levels of organization cognition and organization emotion,while organizational commitment consists of three different types: sustainable commitment,ideal commitment,and affective commitment. Among them,organizational cultural identity has a remarkably positive effect on the affective commitment and ideal commitment,but has no significant effect on sustainable commitment. Thus organizations can improve organizational commitment by improving cultural identity in order to keep the internal staff stability.