Objective: The objective of this study was to conduct a comparative analysis of the effectiveness of incentive spirometry, the Acapella device, and a combination of both in physiotherapy for patients undergoing thoracoscopic pulmonary resection surgery. Methods A total of 268 patients participated in this study and were randomly assigned to either the incentive spirometry group or the Acapella device group. Lung function parameters, including FEVI and FVC, were measured. The patients' comfort levels were evaluated using a visual analogue scale, and pain assessment was performed using a 0-10 scale. The primary outcome measure was FEVI on the third day postoperatively. Additionally, the total analgesia required was recorded. Statistical analysis involved the use of Mann-Whitney U test, independent t-test, Chi-square test, or Fischer exact test. A significance level of p < 0.005 was adopted. Results: In a preference test where participants were asked to evaluate both devices, the majority (94%) favored the Acapella device significantly (p < 0.001). Pain levels showed no significant difference between the two groups at various postoperative time points. Furthermore, the total morphine dose used in the incentive spirometer group (202.55+28.54mg) was comparable to that in the Acapella group (206.93+22.64mg) (p=0.166). Conclusion: The study concluded that there was no significant difference between the Acapella device and incentive spirometry concerning overall lung function improvement Jfollowing thoracoscopic surfgor epurlmoynar y resection.