Concerns about smartphone addiction have been raised as the use time of and dependence on the smartphone is increasing. This study were to examine the differences of self-control, daily life stress, and communication skills between smartphone addiction risk group and general group in nursing students, South Korea. A cross-sectional descriptive design was adopted. Samples were total 139 nursing students (addictive risk: n = 40, general: n = 99) at G and B cities in South Korea. Measures were general characteristics form, self-control scale in Korean version, daily life stress scale for college students, and Global Interpersonal Communication Competence Scale (GICC). There were significant differences on self-control (t = 3.02, p = 0.003) and daily life stress (t = 3.56, p < 0.001), but there was no significant difference on communication skills (t = 1.72, p = 0.088) between two groups. Nursing students in smart phone addiction risk group had worse self-control and higher daily life stress than nursing students in general group. The preventive education programs for healthy smartphone use of Korean nursing students are needed.