신라 때 병정현·파정현이었다가 고려 성종 때에 해평현으로 개칭되었고, 조선 초기에 인동현에 예속되었다.
It was called Byeongjeong-hyeon and Pajeong-hyeon in the Silla Dynasty, but were renamed Haepyeong-hyeon during the King Seongjong of the Goryeo Dynasty, and were subordinated to Indong-hyeon in the early Joseon Dynasty.