River terrace is a good carrier for the study of river evolution and tectonic movement. Although the Quaternary geology in Beijing area is highly studied, there are few relevant research data on river terrace in the east of Beijing. In this paper, Ju River, Huangsongyu River and Jiangjunguanshi River developed in front of Yanshan Mountain, are taken as the research objects in Pinggu Beijing. The development sequence of the above-mentioned river terraces is divided in detail. On this basis, the formation times, terrace genesis and the response of river terraces to the uplift of Yanshan Mountain are discussed by field geological survey and opto-luminescence dating (OSL). It is considered that Ju River developed three terraces on the south bank and developed two terraces on the north bank. Huangsongyushi River developed six terraces. Jiangjunguanshi River developed five terraces. Jiangjunguanshi River was formed at least in the late Middle Pleistocene (161.7±7.7 ka BP) and Huangsongyushi River was formed at least in the early late Pleistocene (121.2±5.4 ka BP~100.3±4.1 ka BP). Ju River was formed at least during the middle of the Late Pleistocene (79.4±3.3 ka BP to 70.8±3.4ka BP). The formation of the terraces of Ju River, Huangsongyu River and Junjiangguanshi River is influenced by paleoclimate change and Yanshan Mountains uplift. Yanshan Mountains in Pinggu area has been in a state of uplift since the late Middle Pleistocene, and the uplift rate reached the maximum in the early late Pleistocene, up to 0.24~0.34 mm/a, and decreased in the middle of the late Pleistocene. 0.18 to 0.24 mm/a. The above results have important reference value for the study of the development characteristics and formation times of river terraces in eastern Beijing, and also provide new evidence for the uplift of Yanshan Mountain since the late Middle Pleistocene.