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Objective The objective of this report was to demonstrate the clinical application of free flow-through anterolateral thigh flaps for the treatment of high-tension electrical wrist bs. Methods We collected the data of 8 patients with high-tension electrical wrist bs admitted to Beijing Jishuitan Hospital from January 2014 to December 2018. The clinical and pathological data were extracted from electronic hospital medical records. We obtained follow-up information through clinic visits. Results The injury sites for all 8 patients were the wrists, specifically 5 right and 3 left wrists, all of which were on the flexor side. Five patients had ulnar artery embolism necrosis and patency, with injury to the radial artery. Two patients had ulnar and radial arterial embolization and necrosis. The last patient had ulnar arterial embolization and necrosis with a normal radial artery. After debridement, the wound area ranged from 12 cm × 9 cm to 25 cm × 16 cm. The diagnoses for the eight patients were type Ⅱ to type Ⅲ high-tension electrical wrist bs. Free flow-through anterolateral thigh flaps (combined with great saphenous vein transplantation if necessary) were used to repair the wounds. The prognosis for all patients was good after six months to one year of follow-up. Conclusion Treating wrist types Ⅱ and Ⅲ high-tension electrical bs is still challenging in clinical practice. The use of free flow-through anterolateral thigh flaps (combined with great saphenous vein transplantation if necessary) to repair the wound and to restore the blood supply for the hand at the same time is a good choice for treating severe wrist electrical bs.