Aim — to evaluate an efficacy and safety of the new device for left atrial appendage ligation during thoracoscopic ablation. Material and methods. 39 turnstile left atrial appendage ligations have been performed during thoracoscopic ablation for the period December 2016 — June 2017. Mean age of patients was 61.5 years (range 35—77). There were 11 women among patients. 37 patients had persistent atrial fibrillation. Previous stroke was observed in 7 cases. Mean left atrial volume was 148.6 ml. We have developed turnstile device to occlude left atrial appendage. The method allows repositioning of the loop before final fixation. In 10 cases one ligature was applied, in 29 cases — two ligatures. Results. There were no cases of death, bleeding and stroke. In 3 out of 10 cases of 1 ligature incomplete ligation of left atrial appendage was detected. In case of 2 ligatures left atrium appendage was not contrasted. Residual stump near 8 mm was identified in one case. Mean time of ligation was 15 minutes. CT-control in 3 months showed the same morphological pattern in all patients. Conclusion. New method of left atrial appendage ligation showed high safety and efficiency about 96.5%. This technique is simple and may be performed as a separate procedure in high-risk patients with atrial fibrillation as an alternative to anticoagulant therapy.