"Mine borehole logging analyzer" was a new integrated logging technique for downhole drilling in coal mine combining with techniques of natural gamma ray logging, drilling of high resolution video, a full range of deviation, well depth measurement. The natural gamma and video synchronization analysis methods were used for lithology discrimination and stratification, which not only could draw borehole lithologic column, and identify drilling hole structure features (pore, fissure development, water outlet characteristics, roof separation, etc.), but also could plot directional drilling trajectory profile, drilling trajectory plan and automatically generate drilling geological profile prototype. Various maps could be output in CAD format or pictures. This technique was widely applied in geological and water control areas of mines owned by Fenxi Mining (Group) Corporation. We could see that this technique had features of applicability and advancement through introduction of its typical application cases.