This study set out examine empirically the patterns of attitude perceived by others by making use of social distance with a focus on the improvement of an attitude environment, which is the most basic element to fulfill inclusive welfare, based on the security of human rights and the management of diversity for social minorities that were becoming the objects of punishment and exclusion across various areas of the South Korean society. Targeting college students considered as important drivers of the attitude discourse according to the life cycle, curriculum and social position, the study compared and analyzed their attitude levels by applying social distance and also differences and influential factors in their attitudes according to minority groups. By taking into balanced consideration the effects of main elements at the school level in analysis as well as the cognitive, emotional, and behavioral elements at the individual level in the process, the investigator made an attempt at the objectivity of analytical application and the multi-sidedness of implications. Total 660 students were analyzed in the study at 22 universities around the nation. Data was collected from them with an interview and phone survey based on a structured questionnaire. Their attitude levels were examined in descriptive analysis; their attitude differences were examined in covariation analysis; and their influential factors were examined in multi-level analysis. The analysis results show that the college students recorded a higher level of social distance from minority groups, scoring 3.92 above the standard median value(3) on a 5-point scale. Their negative evaluation was the highest for the disabled, who were followed by homosexuals and multicultural people in the order. The analysis results of attitude differences reveal that there were statistically significant differences in their attitudes toward all the minority groups according to overall social distance and its subelements(physical and relational distance). On a premise that school effects would be significant for all the minority groups, the investigator analyzed influential factors and found that understanding education, practice of volunteer work, and school culture of the school variables were major variables. Based on these results, the study proposed to make specific approaches to the demands of each minority group as well as make systematic efforts at the school level through the institutionalization of the entire minority community under a huge framework of consideration for both universality and uniqueness in understanding and approaching minorities.