Thoracoscopic surgery is the development trend of thoracic surgery, which has the advantages of small trauma and fast recovery, and is more easily accepted by patients. At first, thoracoscopic surgery mainly used 4-hole and 3-hole. With the maturity of surgical technology and the gradual improvement of medical equipment, thoracoscopic surgery gradually transitioned to single operating hole or single hole. The so-called single operating hole is a mirror hole, an operating hole, the length of the mirror hole is about 1 cm, and the length of the operating hole is about 3 cm. Currently, only two hospitals in Shanghai are performing single-port and single-operating-port lumpectomy, and most medical institutions in China still mainly perform three-port or four-port surgery. The following authors will discuss their own learning experience and operation experience. The technical difficulties of single-operator lumpectomy are mainly in the following four aspects: selection of the hole location, visual field exposure, anatomical freeing, and safe resection. The selection of the hole position is the first step of the operation, which is also a very important step. Because the biggest problem of single or single-operating hole is that the operation angle is relatively single, choosing the appropriate hole position can reduce the difficulty of surgical operation. The authors’ experience is that the hole selection for the single operating hole: the mirror hole is placed at the seventh intercostal space in the posterior axillary line, and the operating hole is placed at the fourth intercostal space between the posterior axillary line and anterior axillary line. The visual field is revealed, and the surgical field is revealed throughout the procedure, and good exposure is an important guarantee for anatomical freeing and safe resection. It is difficult to reveal the operative field under a single operating hole because there is only one operating hole with a small length, and when the operator pulls the lung lobe through the hole with an oval forceps to reveal it, the change of its angle is limited, so the operator has to use an oval forceps with a suitable length to pull to reveal it, and at the same time, the angle of the operating table can be changed to change the patient’s body position, thus reducing the difficulty of revealing it. In addition, the requirements for the hand holding the mirror are very high, and the hand holding the mirror should adjust the depth of field, image position and angle according to the intraoperative situation at the right time. The anatomical excursion under a single operating hole requires a high level of operator knowledge, not only a precise mastery of the lung anatomy, but also a good knowledge of the microscopic anatomy and a good sense of space. The biggest problem with single-operator subperforation anatomical excursions is that the operating instruments “fight”, and the operator must solve this problem well. The authors’ experience is that, first, the operator must have good skills in revealing the operative field, and good revealing can reduce the use of surgical instruments. Second, the operation should be done with a combination of short and long instruments, which has the advantage that the exposure and dissection are not in the same plane, so the problem of “fighting” of instruments can be better solved. Another important issue is that the dissection should start with the easy areas and eventually the difficult areas will become relatively easy to free. The safe removal of the target lobe is the final step of the procedure, which is also very difficult and critical, mainly because of the “angle” problem. The main technical point in this procedure is how to make the cutting closure successfully hold the resection target without damaging the surrounding tissues and organs. The authors’ experience is that, first, the operator must have good field exposure skills, as good exposure can significantly reduce the chance of side injuries; second, the target vessel or bronchus must be adequately free, especially when there are more lymph nodes, it is best to remove the lymph nodes before placing the cutter; third, after freeing the target vessel or bronchus, the target vessel or bronchus should be wrapped with a ten-gauge wire to do extra- or intrapleural Third, after freeing the target vessel or bronchus, use a ten-gauge wire around it to do extra-pleural or intra-pleural traction, so that a suitable angle can be chosen for successful clamping of the cutter; fourth, a rotary-head cutter can be chosen; fifth, a right-angle clamp on the opposite side of the target vessel or bronchus can reduce the operational difficulty.