In recent years, self-affirmation has been attracting attention in the area of education and psychology, Since it was pointed out that Children’s self-affirmation of Japan is lower than in a foreign country of a children. For this reason, research and practice to raise the self-affirmation of children have been made. However, it is not a study about the increase of self-affirmation of college students so that, In this study, we investigated the influence factors on the self-affirmation of college students. As a result, it was found that anxiety abandoned and communication skills can affect the self-affirmation.