Abstract: To solve this proble m, the load of ce ment pole under extre me working conditions such as ice covering and wind in Yunnan was calculated and analyzed. Based on the para meters of ce ment pole type, wire and soil of 10 kV line in Yunnan distribution network, the finite ele ment mechanical analysis model of linear pole, Angle pole and s mall Angle pole was established. The mini mu m buried depth require ment of ce ment pole under extre me working conditions was studied, and i mprove ment measures were proposed. The results show that the mini mu m buried depth of the linear rod is 1.80 m, which is sufficient according to the national standard. Angle pole (Angle 15°), s mall Angle pole (Angle 5°) the mini mu m depth specified in the national standard is insufficient, and reinforced concrete chassis can be poured at the botto m of the ce ment pole to increase the anti-overturning ability of the ce ment pole; Uneven ice cover conditions (ice cover thickness 30 mm) linear rod, Angle rod, s mall Angle rod mini mu m buried depth stipulated by the national standard are insufficient, there will be a reverse rod, need to be deiced in ti me. The research results are an effective supple ment to the mini mu m burial depth stipulated by the national standard.