Many patients develop diarrhea after the use of intraintestinal nutritional support, which affects the patient's nutritional absorption and other therapeutic effects. From the selection of nutrient fluid, nutrient concentration, temperature, infusion speed, correction of hypoproteinemia, control of the use of gastrointestinal power drugs, etc. , improve the effect of intestinal nutrition support, reduce adverse reactions and events of patients. Cluster-based nursing behavior refers to the nursing behavior which improves the final efficacy of patients through the systematic arrangement and implementation of decentralized nursing measures. Each kind of nursing behavior needs evidence-based medical evidence, which has been proved to be of positive significance to improve the final outcome of patients, evidence-based and operable. Intestinal nutritional support is commonly used to provide nutritional support to patients. However, people with diarrhea are affected by a variety of factors. More effects on the effects of intraintestinal nutritional support. Cluster-based care enhances the role of gastrointestinal power drug use in selecting suitable nutrient strains, guaranteeing the temperature of the nutrient solution, ensuring the concentration and infusion speed of the nutrient solution, correcting low proteinemia, and controlling the use of gastrointestinal power drugs. In summary, clustering care can prevent the occurrence of intestinal nutrition-related diarrhea in patients with cerebral hemorrhage, which has certain significance for improving the patient's prognosis. However, cluster care requires a higher level of team composition and quality. In addition, there are some limitations in practice, facing many challenges, such as poor compliance of nursing staff, lack of sufficient evidence-based medical evidence to determine the point of care. Therefore, it is necessary to strengthen the clinical application of cluster nursing cognitive training, make rational use of cluster nursing concept, and continuously improve the quality of nursing.