This study seeks to determine how personality patterns on marital adjustment are influenced by interacting with conflict resolution styles. Data for this study were collected from intermarriage couples comprising 293 pairs (586 patients) who lived in Korea for at least 5years. Snowball sampling was carried out from August to October 2011. SPSS 18.0 was used to analyze the collected data. The results of this study are as follows: (a) The conscientiousness and openness of personality patterns turned out to be common personality factors that represent a positive affect on the intermarried couples' effort to adapt. (b) The extroversions, agreeableness, and neuroticism shown significantly increase and decrease the intermarried husband's marital adjustment, but the same did not have a significant influence on the intermarried wife's marital adjustment. (c) Factors that affect marital adjustment, the conflict resolution styles of intermarriage couples showed different results depending on the gender. (d) The Intermarried wife's personality patterns represented a positive affect on her marital adjustment by interacting with her husband's conflict resolution styles, while the intermarried husband's personality patterns represented a positive affect on his marital adjustment by interacting with his wife's conflict resolution styles. The implications of this study will be discussed in the conclusion.