Machangying is a town in the western part of Pinggu District, in the Beijing region of China. It is one of the towns that make up Pinggu District, which lies in the eastern portion of the Beijing municipality.
The town is bordered by several other towns within the district and beyond. To its north lie Yukou and Daxingzhuang Towns, while Pinggu Town borders it to the east. Donggaocun and Mafang Towns are to its south, and to its west are Dasungezhuang and Zhang Towns.
Machangying had a population of 16,794 as of 2020.