This paper briefly describes the general situation of coal mine survey project in Daxueshan mining block (in the east part) of Yunlian mining area in Sichuan, including the project background and the directional hole design; mainly introduces the technical route, program and technical points, as well as the drilling effects, economic benefits and achievements obtained by cabled directional drilling. With XY-2000 spindle type hydraulic drilling machine, BW-320/10 mud pump, HC wireline coring pipe, ADST inclinometer putting through the cable swivel for measuring while drilling, the controlled directional hole was constructed by whipstocking with screw motor BHA. In 2 ultradeep holes of more than 1000m in depth, the total footage was 7378m with 29 whipstockings. The drilling trajectory was basically controlled to reach the geological target. In the construction, the selection of the bent joint angle of screw drill tools for directional drilling and the decision of bending strength suitable to wireline drill pipe were explored.