Purpose: This study was done to develop an educational needs scale for cell phone use, to investigate the scope of cell phone use in children and their parents" perception, and to compare the educational needs for children and parents regarding children"s cell phone use. Method: The participants were 152 children and 152 parents in two cities. Data were collected through self-report questionnaires, and analyzed using the SPSS program. Result: Ten items regarding the educational needs for cell phone use were selected for the final scale, and categorized into 2 factors (cell phone use and cell phone addiction). The scope of cell phone use in children is different from their parents" perception. The educational needs of parents were higher than those of children. Conclusion: The findings indicate that the scope of cell phone use and the educational needs of children were different from their parents" perception and needs. Further research would be required to identify the educational needs for children and parents regarding children"s cell phone use and related factors. In addition, development and effects of the educational programs for cell phone use in children and parents will be required.