Qingbiankou, located 20 kilometers south of Xuanhua and 15 kilometers west of Dajingmen, is an important passageway to the northern frontier and a strategic location for military contention. Throughout several dynasties, the Great Wall was constructed here. It started with the Zhao Great Wall during the Warring States period, followed by the Northern Wei and Northern Qi Great Walls, and finally the Ming Great Wall.

The construction of the Qingbiankou fortress began in the early Ming Dynasty. According to historical records, in the spring of the second year of the Hongwu reign (1369) of the Ming Dynasty, General Chang Yuchun passed away at Changyukou due to illness. His son, Chang Mao, inherited his father's legacy and continued to lead the troops to defend the northern frontier. It is said that Chang Mao once subdued a skilled warrior named Qin Bianhu, who was a mountain bandit. Before leaving, Chang Mao left Qin Bianhu to guard this place and built a fortress. Later, this place was named after him and gradually evolved into Qingbiankou.

After enduring centuries of wind and rain, although the walls have suffered varying degrees of collapse and damage, its original appearance is still clearly visible today. What is even more rare is the absence of modern buildings in the surrounding area, showcasing the desolate, silent, and vast ancient battlefield. Visitors can come here to appreciate the authentic Great Wall and admire the magnificent scenery of the ancient battlefield.