Introduction to Erqi: Erqi District is located in the southwestern part of Zhengzhou City Center, east to Guancheng Huizu District, west to Zhongyuan District and Xiangyang City, south to Xinmi City and Xinzheng City, and north to Jinshui District. Erqi District is the commercial and trade center of Zhengzhou City, the capital of Henan Province. It was named after the strike of the Jinghan Railway on February 7, 1923; the area is 156.2 square kilometers, including 30 square kilometers in the urban area; 610,000 (2012), of which The city has 537,000; it includes 1 township, 1 town, 13 streets, 82 communities and 52 villages. In the area, there are the memorial memorial sites such as the Erqi Memorial Tower, the Erqi Memorial Hall, the Northern Expeditionary Memorial Cemetery, and the Zhengzhou Martyrs Cemetery. They are provincial-level cultural relics protection units. The Erqi Memorial Tower was built to commemorate the tragic death of the Jinghan Railway strike on February 7, 1923. At the center of the Erqi Square in the city, the former site of Changchun Bridge was Dehua Street, Erqi Road, Renmin Road and Jiefang Road. Interchange. The Erqi Memorial Hall in the middle section of Qiantang Road is one of the sources of the "two-seven" general strike. It covers an area of ​​1,800 square meters and has 1,500 seats in the memorial hall. It has a "27" historical exhibition room. The Northern Expeditionary Army’s cemetery is in the construction of Lushagang Park in Lunan, Zhongyuan Road North and Lushan Road East.