This paper introduces the construction situation of scientific drilling ZK01 and the key technologies adopted, HXY9 type drilling rig and some other equipment are used and the final depth of ZK01 is 3266.06m with 98mm in diameter. According to the difficulties in super-deep hole construction, complex formation construction and drilling machines matching, the shortage of China-made HXY9 type drilling rig and the key technologies of the combined use of deep hole drill column, the application of double polymer mud system with LBM as main component in complex formation and the application of special JS150/122wire-line coring drill are elaborated in detail.