Objectives: The purpose of the study is to investigate the voluntary activity, sociality, and morality in the dental hygiene students. Methods: A self-reported questionnaire was filled out by 563 dental hygiene students in Jeonbuk from May 20 to June 20, 2013. The questionnaire consisted of general characteristics of the subjects, volunteer activity, sociality, and morality. The instrument of sociality was adapted from Kim and reconstructed. Sociality was scored by Likert 5 scale and consisted of autonomy(4 questions), assiduousness(4 questions), sociability(4 questions), stability(4 questions), and leadership(4 questions). Cronbach alpha was 0.655 in the study. Morality instrument was adapted from Kim and Cho and reconstructed. The instrument was score by Likert 5 scale. Morality consisted of altruistic(8 questions) and social responsibility(8 questions). Cronbach alpha was 0.786 in the study. Data were analyzed using SPSS 12.0 program for descriptive analysis, frequency analysis, and t-test. P value was set at p>0.05. Results: Among the dental hygiene students, 50.4% participated in the volunteer activity. 22% of the students tended to help others. There was a significant difference between the volunteer activity, sociality, and morality. Conclusions: The volunteer activity experience and sociality had a positive effect on the participation in helping others. Sharing with help is the most important attitude toward the positive thinking and the right way of living. So the professors and students must try to share knowledge and volunteering mind in clinical practice for the patients.