The political party system in Korea is changing now. It is the purpose of this article to analyze the changing mechanism of Korean party system. The text is composed of four parts. First, it is observed that the concept of realignment and the theories of ÀÌ ±ÛÀÇ ¸ñÀûÀº ¹ÎÁÖÈ ÀÌÈÄ Çѱ¹ Á¤´çü°èÀÇ º¯È¸¦ ÀçÆí¼º °³³äÀ¸·Î ¼³¸íÇÏ´Â °ÍÀÌ´Ù. ƯÈ÷ 1987³â ´ëÅë·É ¼±°Å¿Í 2002³â ´ëÅë·É ¼±°Å ÀÌÈÄ¿¡ ³ªÅ¸³ º¯ÈµéÀÌ ¾î¶»°Ô ´Ù¸¥Áö¿¡ ´ëÇÑ ºÐ¼®À» ÅëÇØ Á¤´çü°è º¯ÈÀÇ ¸ÞÄ¿´ÏÁòÀ» ¹àÈ÷°íÀÚ Çß´Ù. ÀÌ ¸ñÀûÀ» À§ÇØ º»¹®Àº Å©°Ô ´Ù