This descriptive research aimed to study perception of moral identity among personnel of Royal Thai Air Force Nursing College composed of honesty, responsibility, and generousness. Participants were 282 personnel of Royal Thai Air Force Nursing College including director and lecturer, staff, and air force student nurses. Instruments were moral identity behavior questionnaires for each group. All instruments were approved by three experts which CVI 0.6 -1.00 and reliability were 0.82, 0.89, and 0.95 respectively. Data analyses wereperformed by mean and standard deviation.The results revealed that1. The overall of perception of moral identity behavior among director and lecturer was a highest level ( = 4.59, S.D. = 0.55). In addition, the honesty domain was highest level ( = 4.89, S.D. = 0.28), the responsibility domain was high level ( = 4.47, S.D. = 0.49), and the generousness domain was high level ( = 4.49, S.D. = 0.54). 2. The overall of perception of moral identity behavior among staffs was a high level ( = 4.33, S.D. = 0.74). In addition, the honesty domain was high level ( = 4.33, S.D. = 0.85), the responsibility domain was high level ( = 4.34, S.D. = 0.61), and the generousness domain was high level ( = 4.33, S.D. = 0.63).3. The overall of perception of moral identity behavior among air force student nurses was a high level ( = 4.36, S.D. = 0.71). In addition, the honesty domain was high level ( = 4.38, S.D. = 0.68), the responsibility domain was high level ( = 4.17, S.D. = 0.71), and the generousness domain was high level ( = 4.42, S.D. = 0.69).The results of this study could be used to develop moral identity behavior among personnel of Royal Thai Air Force Nursing College.