The Ningxia Nuclear Geological Survey Institute conducted winter drilling and construction of the coal resource exploration project, an urgently needed local mineral resource project for energy supply, in the Shenjing block of Xiangshan Township, Zhongwei City, Ningxia from November 2022 to March 2023. The lowest temperature in the working area was -21 ℃. During the construction period, the drilling construction was greatly challenged due to the influence of low temperature and strata fragmentation. The main coal seams were mainly fine coal, and the difficulty of coring was high. By using a low-temperature resistant flushing fluid system Reasonable maintenance of drilling rig diesel engines and other equipment, optimization of drilling tool combinations, and improvement of cold and heating conditions for construction personnel have successfully completed drilling winter construction, with an average monthly efficiency of 811.8m/month.