The completed secondline project of Sino-Russian crude oil pipeline passes through Northeast China such as Mohe River in Heilongjiang Province in winter, and the average temperature is extreme low in winter. The use of diesel engine as power in hydraulic pump station of slope machine is faced with the problem of not starting at low temperature. For the low temperature of -40 ℃ in the northeast region, a hydraulic pump station for the slope machine used under extremely cold temperature conditions was designed. A holistic frame structure was adopted for the hydraulic pump station and a closed insulation design with good low temperature protection was adopted for the engine. The optimal design of the hydraulic control system and the optimized selection of the hydraulic components solve the problem of the use of the hydraulic pump station under low temperature conditions and ensure the use of the project site.