Objective To comprehend the application of intravenous transfusion instrument in grade three hospitals of GuangZhou,and promote the use of trochar.Methods Using the questionnaire survey,we investigated the application of intravenous transfusion instrument in 12 grade three hospitals within 24 hours on October 10th to 11th in 2012,and then collected all data for analysis.All personnel participated in the investigation were given training to ensure the accuracy of the data collection.Results 9 732 patients needed to receive intravenous therapy,among whom 3 866 patients chose scalp acupuncture and 4 195 patients chose vein detained needle.We divided all the patients who had scalp needle and vein detained needle by age.The utilization of vein detained needle was higher than scalp acupuncture in the patients of ＜19 years old and ＞70 years old,but the utilization of scalp acupuncture was higher than vein detained needle in the patients of 19～70 years old.The difference of choosing intravenous transfusion instrument among different age groups had statistical significance.Conclusions Patients of 19～70 years old are in young and maturity phase,middle age,old age.The compliance of them is lower than other patients.They think the vein detained needle influence their daily activities and individual image,and also worry about infection.So they do not actively use vein detained needle,except when having poor situation in peripheral venous.Nurses are lack of health education,and fail to allow patients actively choose vein detained needle.