Abstract： Objective： To observe the clinical effect of Dachengqi Decoction combined with point ultrasound introduction therapy on severe intra- abdominal hypertension. Methods：A total of 50 cases of patients with severe intra-abdominal hypertension were selected as the study objects and divided into the control group and the observation group according to the random number table method，with 25 cases in each group. Based on routine western medicine treatment，the control group was additionally treated with Dachengqi Decoction， and the observation group was additionally treated with Dachengqi Decoction combined with point ultrasound introduction therapy. Rehabilitation indexes，Acute Physiology and Chronic Health Evaluation Ⅱ (APCHE Ⅱ) scores， Acute Gastrointestinal Injury (AGI) grading， nutritional risk screening，traditional Chinese medicine (TCM) syndrome scores and the incidence of adverse reactions in the two groups were observed. Results： After treatment， intra- abdominal pressure， defecation frequency and abdominal circumference in the observation group were lower than those in the control group (P＜0.05)，the length of ICU stay and the duration of mechanical ventilation were shorter than those in the control group (P＜0.05). On day 3，5 and 7 after treatment，the APCHEⅡ scores in the two groups were decreased when compared with those on day 1 after treatment (P＜0.05) and showed a decreasing trend (P＜0.05)；the APCHEⅡ scores in the observation group were lower than those in the control group at the same time point (P＜0.05). After treatment， the AGI grading in the two group were improved when compared with those before treatment (P＜0.05)，and the AGI grading in the observation group was better than that in the control group (P＜0.05). On day 3，5 and 7 after treatment，the scores of nutritional risk screening in the two groups were decreased when compared with those on day 1 after treatment (P＜0.05) and showed a decreasing trend (P＜0.05)；the scores of nutritional risk screening in the observation group were lower than those in the control group at the same time point P＜0.05). After treatment，the scores of TCM syndromes including abdominal distension，abdominal pain，fever，vomiting，dry mouth，halitosis， and dry stool in the two groups were decreased when compared with those before treatment (P＜0.05)， and the above scores in the observation group were lower than those in the control group (P＜0.05). After treatment， the incidence of adverse reactions was 8.00% in the observation group and 12.00% in the control group， there being no significant difference between the two groups (P＞0.05). Conclusion： Dachengqi Decoction combined with point ultrasonic introduction therapy can promote the rehabilitation of patients with severe intra- abdominal hypertension ， effectively improve the acute gastrointestinal injury and enhance the health and nutritional status of patients，with good safety.