OBJECTIVE： To provide reference for reducing the rate of outpatient/emergency intravenous infusion in paediatric and improving the safety of drug use in children. METHODS： The comprehensive intervention of outpatient/emergency intravenous infusion in paediatric by pharmacists of our hospital though multiple measures was introduced， such as education training， system construction and management， multi-party monitoring and intervention. Related data were selected before （Jan-Jun. 2018） and after intervention （Jul.-Dec. 2018） to evaluate intervention effects， involving paediatric outpatient/emergency intravenous infusion rate， antibiotics intravenous infusion rate， the rate of intravenous infusion prescription， total cost of antibiotics， TCM injection， adjunctive drugs and key monitoring drugs in infusion prescriptions. RESULTS： Through the comprehensive intervention of pharmacists， related indexes of outpatient/emergency intravenous infusion in paediatric were decreased greatly in our hospital. The rate of intravenous infusion， the rate of antibiotics intravenous infusion， the rate of intravenous infusion prescription and the rate of antibiotics intravenous infusion prescription were decreased from 19.52％， 15.46％， 20.29％， 11.20％ to 10.37％， 8.55％， 10.25％， 6.64％（P＜0.001）， respectively. Total cost of antibiotics， TCM injection， adjunctive drug and key monitoring drug were decreased respectively in infusion prescriptions （P＜0.001）. CONCLUSIONS： The comprehensive intervention measures taken by pharmacists in our hospital can reduce the rate of outpatient/emergency intravenous infusion in paediatric and the medical cost， and promote the safety of drug use in children.