Abstract: Objective?To evaluate the feasibility and safety of forficiform knife in the difficult endoscopic submucosal dissection.?Methods?From June 2015 to June 2018, 29 patients who were scheduled an endoscopic submucosal dissection (ESD) for early gastrointestinal cancer or precancerous lesion were enrolled and treated with for ficiform knife (MD-47703 Jr type VS knife). All the patients were regarded as difficult for the ESD procedure by preoperative evaluation.?Results?All the 29 patients were resected en bloc. No complications such as perforation, hemorrhage occurred during or after the procedure of ESD. The mean size of lesion was (3.70 ± 1.09) cm, the average operating time was (64.83 ± 17.77) min. All these lesions were classified as curative resection by post-ESD histopatholoy with negative lateral and vertical margin.?Conclusion?The using of forficiform knife during ESD not only lowers the difficulty but also increases the safety of procedure.