Liver resection is one of the most challenging procedures and technically advanced areas in abdominal surgery. With the development of minimally invasive surgical instruments, imaging equipment, and advances in surgical techniques, laparoscopic liver resection has entered a rapid development stage. However, it remains difficult and high-risk, with many technical considerations. One of the core aspects is the control of techniques during liver parenchymal transection, which mainly involves the selection of the approach, confirmation and correction of the transection plane, choice and use of instruments, and control of bleeding. Mastering liver parenchymal transection techniques can improve the completion rate of surgery, reduce the risk of intraoperative complications, and ensure the precise implementation of laparoscopic liver resection. Currently, there are still many technical challenges in laparoscopic parenchymal transection. It is believed that with the accumulation of experience and innovation in instruments, the techniques for liver parenchymal transection will also develop and become increasingly perfect.