In recent years, with the need of increasing reserves and production in TMG oilfield, deep wells in TUZ block are gradually increasing. Meanwhile, the difficulty of exploration and development is increasing. Therefore, while ensuring the quality of the wellbore, it is an important way for TUZ block to optimize the personalized and efficient rock breaking bit with strong adaptability to the formation, good performance of penetrating interlayers and strong abrasion resistance, improve the ROP, shorten the construction period and complete the drilling operation safely and quickly. Based on the investigation of the bits used in TUZ block, this paper compares and optimizes the personalized and efficient rock breaking bit sequence from the aspects of reducing the construction torque and WOB, increasing the cuttings diversion area, strengthening the stable cutting and prolonging the working life of the bit. The PDC bit composite piece is processed with gradient alloy teeth technology. Combining the advantages of impact-resistant composite sheet technology and targeted personalized bit design to achieve the improvement of PDC bit cutting material performance and the extension of the extreme environment of drilling construction, comparison and optimization of personalized and efficient rock-breaking bit sequence. Taking the construction data of the optimized bit in this block as an example, it provides a choice for the later efficient exploration and development of this oilfield block. This has a good guiding role on site construction.