Objective To investigate the effect of emergency fast-track treatment on dangerous upper gastrointestinal bleeding. Methods Seventy-six patients who received traditional treatment between October 2020 and March 2021 were included in the traditional treatment group, and 82 patients who entered the emergency fast track for dangerous upper gastrointestinal bleeding between April 2021 and September 2021 were included in the fast-track treatment group. The patients in the traditional treatment group were treated with the traditional single-subject diagnosis and treatment mode, and the patients in the fast-track treatment group were treated according to the multidisciplinary diagnosis and treatment procedures of emergency fast track for dangerous upper gastrointestinal bleeding. The length of emergency stay, 24-hour endoscopic completion rate, effective rate, and length of hospital stay were compared between the two groups. Results The length of emergency stay [(3.75±3.19) vs. (6.51±4.72) h], the effective rate (96.3% vs. 85.5%) and the length of hospital stay [(8.26±2.51) vs. (11.07±2.79) d] were significantly better in the fast-track group than those in the traditional treatment group (P<0.05). There was no significant difference in the 24-hour endoscopic completion rate between the two groups (96.3% vs. 96.1%, P>0.05). Conclusion Compared with the traditional treatment mode, the fast-track treatment mode can significantly improve the treatment efficiency, and reduce the lengths of emergency stay and hospital stay.