Communication skills are the ability of an individual displays in consistently demonstrates the ability to effective communicate with clients, colleagues, subordinates and supervisors in professional manner and in the personal department. This study aimed to design, implementing and evaluating the effectiveness of an educational training program of communication skills addressed to nursing staff to help them improve their caring competencies of mentally ill patients. The study was carried out at Assiut Psychiatric Mental Health Hospital, Ministry of Health. The study sample comprised 30 nurses (14 males and 16 females); data were collected through pre/post three months post the educational training program. The main results yielded by the study proved that, the highest percentage among nurses aged from 30 or more than 30 years, females than males, and single, more than ⅔ (73.3%) of the studied group was lived in rural area and the scores of knowledge and practical skills of communication were improved after application of educational training program among nurses . The study recommended continuous education provided for all nursing personnel working with psychiatric patients and Communication skills methods as a training program should be provided to all nurses at regular sessions by professional people in the field of mental health to train them on dealing with stressful situation. And make nurses updated of new knowledge and to be good communicator to handles of patient's care.