Seeking help when necessary can be an appropriate problem-solving strategy. However, dependent help-seeking may cause interpersonal problems, and a consistent failure to ask for help may impair problem-solving. In addition, an individual's self-esteem and evaluation of the ability of others may influence help-seeking style. Thus, in the current study, we investigated the relationship between assumed-competence and help-seeking style, using the scale of help-seeking style (Nagai, 2013). A questionnaire survey was conducted with college students at national universities. Data for 282 respondents were analyzed. Hierarchical multiple regression analysis was used to identify individuals with a low assumed-competence adaptive style of help-seeking, and individuals with a high assumed-competence positive relation with help-seeking avoidance style. Individuals categorized as the unsure type also exhibited low self-esteem and assumed-competence. The results revealed that the help-seeking style of the unsure group exhibited a significant correlation with confidence in others. Specifically, we found a significant negative correlation between avoidance style and confidence in others. In contrast, we found a significant positive correlation between dependent style and confidence in others. Therefore, the current results suggested that relatively adaptable individuals tended to exhibit successful help-seeking, whereas unsure individuals were often unable to ask for help.