To observe the therapeutic effect of adding flavor peach and red four-item soup on the treatment of retinal branch vein obstruction. Methods: There were 86 cases of non-ischemic retinal branch vein obstruction, of which 47 cases in the treatment group were treated with the addition of Tao Hong Si Wu Tang (Di Huang, Chuan Xiong, Angelica, Red Peony, Tao Ren, etc.), 2 times/d, each course of treatment was 12 d, and 2 courses of treatment were taken continuously. 39 cases in the control group were treated with the compound thrombosis capsule, 2 capsules/time, 3 times/d, for 24 d. Results: 13 eyes were effective, 29 eyes were effective, 5 eyes were ineffective, the total effective rate was 89.4%, The total effective rate was 89.4%; in the control group, there were 7 cases with significant effect, 17 cases with effective effect and 15 cases with ineffective effect, and the total effective rate was 61.5%. CONCLUSION: Plus-flavored peach and red four-item soup is an effective treatment for retinal branch vein obstruction, and has the effect of activating blood circulation and removing blood stasis. Retinal branch vein obstruction is a common retinal vascular disease in clinical practice, with many pathogenic factors and complex pathological changes. In recent years, clinical Chinese medicine preparations have achieved more results, and there are more controversies on its treatment. The clinical situation of retinal branch vein occlusion treated with this formula since the time of following the teacher is reported as follows. Clinical data Patients were all 86 patients diagnosed with retinal branch vein obstruction in our hospital from July 2007 to December 2009, with the onset time ranging from 3 to 30 d. Based on the principle of clinical inquiry and selection, 47 eyes of 47 patients who took oral tonics were the treatment group, and 39 eyes of 39 patients who selected Chinese medicine were the control group. Visual acuity, intraocular pressure, anterior segment slit lamp and dilated fundus examination were performed before treatment. Fundus examination was consistent with retinal vein branch obstruction, which showed limited and quadrant retinal involvement, dilated, congested and tortuous veins in the drainage area of the obstructed vein branch, superficial retinal hemorrhage and exudation. Some patients with thick retinal hemorrhage, marked venous dilatation, and clustered yellow-white exudate underwent special fluorescein fundus angiography to exclude the ischemic type. Hypertension and diabetes mellitus could not be controlled were excluded in both groups. The treatment method The patients in the treatment group were treated with the addition of Tao Hong Si Wu Tang, consisting of 15g each of Di Huang, Chuan Xiong and Red Shao, 10g each of Angelica sinensis, Tao Ren, Hong Hua, Curcuma longa and Yimou Cao, and 20g each of Astragalus and Danshen. 2 times/d, 300ml each time, for 2 courses of treatment, 12d each. At the end of the treatment, the visual acuity was reviewed, the fundus was examined, and the size of the venous tortuosity, retinal hemorrhage and hemorrhagic plaque, and macular edema were recorded. Efficacy criteria Efficacy assessment was based on the criteria proposed by Huirong Zhang [1]. Significant effect: visual acuity returned to that before the onset, fundus hemorrhage was basically absorbed, and macular edema disappeared; effective: self-conscious symptoms improved significantly, or visual acuity improved by more than 2 lines compared with that before treatment, fundus lesions improved significantly, and the scope of retinal hemorrhage and hemorrhagic plaques reduced significantly; ineffective: visual acuity continued to deteriorate, and fundus condition did not improve.