Directional drilling with the characteristics of rapid and accurate construction during directional drilling, but with high cost of the use and maintenance, and the construction environment was strict. Due to the large volume, some roadways were severely deformed, and installation and transportation were difficult. Ordinary drilling rig with the characteristics of convenient transportation, quick installation, high efficiency of construction, cost saving, etc., but there were many uncertainties, the construction was too fast, affected by the factors such as the ground layer, the drill bit and the weight of the drill pipe, and the deviation of the drilling trajectory and the design trajectory often could not achieve the purpose of construction. Liyuan Mine of Shanxi Province was taken as an example, the directional construction research of ordinary drilling rigs was carried out. Through the correction and correction, the drilling trajectory was infinitely close to the design trajectory and the construction purpose was achieved.