The purpose of this study is to clarify the psychological process by which communication satisfaction with the Human Resource (HR) department influences the intention to stay in the company among general employees. Although the HR department plays a key role in major Japanese companies and communication satisfaction with the HR department could be an important factor for employee retention, the influence process has not been examined so far. Therefore, based on a survey of general employees who are working after four years of employment in major Japanese companies, a mediation model of the influence of communication satisfaction with the HR department on the intention to stay through affective commitment and perceived organizational support is examined. The results show that communication satisfaction with the HR department influences the intention to stay in the company through the mediation of perceived organizational support and affective commitment under the condition that the influence of communication satisfaction with supervisors and workplaces is controlled. This suggests the importance of achieving employees’ positive psychological state toward the organization (affective commitment and perceived organizational support) through communication satisfaction with the HR department for employee retention.