Baisigou Square Pagoda was a brick pagoda in Helan County, Ningxia, China, built during the Western Xia period (1038-1227). It is situated in an isolated location about 10 km into the Baisigou Valley on the eastern side of the Helan Mountains, northwest of Yinchuan, but may have been the site of an important Buddhist temple during the Western Xia. The pagoda was illegally destroyed in 1990; archaeological investigation of the ruins has uncovered a large number of Tangut artefacts and Buddhist relics, including books and manuscripts written in the Tangut language and script.
On 28 November 1990 a local peasant discovered that the pagoda had suddenly collapsed, and when the Ningxia police investigated they discovered that the pagoda had been blown up by unknown criminals, apparently with the intention of stealing any historical relics inside the pagoda. The pagoda was reduced to rubble, with only a fragment of the northwest corner left intact.