To investigate how the boulder levee in Eyukou (located at Mengshan Mountain) was formed and whether Quaternary glaciers exist in the middle and low mountains of Shandong Province, is crucial for us to confirm when the boulder levee was formed. Methods: Based on the evidence of the gravel fabric, the sedimentary structure and the combination of geomorphological features reveal the origin of the Eyukou boulder levee. The age of the boulder levee was speculated by the age of the Quaternary sediments underlying it and the time when local villagers moved here. Because the boulder levee was formed later than the Quaternary sediments underlying it and earlier than villagers moved here. Results: The OSL dating results of sediments underlying the Eyukou boulder levee are 2. 1 to 2. 3 ka BP., indicating that the debris flow accumulation is not earlier than 2. 1 to 2. 3 ka BP. The AMS14 C dating results of sediments underlying are 951~1522 cal AD. Conclusions: Based on the dating results, combined with the oral statements of local villagers, it is inferred that the Eyukou boulder levee were debris flow deposits with low outbreak frequency and long duration, formed several hundred years ago. The newly obtained OSL and AMS 14 C dating results in this paper could serve as auxiliary evidence to deny the view which considers the boulder levee distributed at the foot of Mengshan Mountain was a "moraine ridge" or a "typical rock stream " in the Early Holocene.