Objective To investigate the efficacy of lateral recumbent sling posture in thoracoscopic lobectomy. Methods We consecutively collected 100 patients who underwent thoracoscopic lobectomy in our hospital from January 2019 to 2021， and were divided into 50 cases for both observation group and control group， respectively， according to the random number table method. The control group took the traditional lateral decubitus position， and the observation group took the hanging posture from lateral decubitus position. Duration of placement， the data about Fromme surgical field quality （SSFQ） score， Kolcaba comfort questionnaire （GCQ） score， and incidence of postoperative adverse effects were collected and then compared between the two groups. Results Compared with the control group， the placement time and SSFQ score were significantly lower （P < 0.05）， and the GCQ score were significantly increased in the observation group （P < 0.05）； moreover， the incidence of postoperative adverse effects was significantly lower in the observation group compared with the control group （P < 0.05）. Conclusion The side up hanging posture has achieved good performance in thoracoscopic lobectomy， which can not only effectively shorten the placement period， improve the operation quality of the surgical field， but also significantly reduce the incidence of adverse effects owing high clinical implementation value.