Hampyeong used to be called Jinguk(진국) in prehistoric times, and Mahan in the Samhan age.

[2] Hampyeong was divided into two hyeon, Gulrae-hyeon and Daji-hyeon during the reign of Baekje Kingdom(18 B.C ~ 660 A.D.).

In the 9th year of King Taejong of the Joseon Dynasty, Hampyeong-hyeon and Mopyeong-hyeon were fused into Hampyeong-hyeon, and consisted of 14 myeon; Donghyeonrae-myeon, Suhyeonrae-myeon, Yongpung-myeon, Haejae-myeon, Dagyeong-myeon, Dadong-myeon, Sonbul-myeon, Singwang-myeon, pyeongreung-myeon, Sinji-myeon, Haebo-myeon, Wolak-myeon, Modong-myeon, Daeya-myeon.

The county officially has upbrought tens of thousands of butterflies and other facilities like greenhouses for insects for the festival.

Annually Hampyeong attracts more than 1 million people which, considering its size and scale is quite a large number.