OBJECTIVE：To management recheck and sorting weight for finished intravenous solutions in PIVAS ，to provide reference for reducing dispensing error and improving the safety and quality of intravenous infusion therapy. METHODS ：The weight analysis method was used to determine the weight of main drug and solvent in the finished intravenous solutions and infusion bottle . The weight maintenance information was added in PIVAS information management system ，and the marked weight of finished intravenous solutions was calculated for the verification of finished intravenous solutions. Average daily check quantity of finished product ，checking time ，average checking time of finished products per bag ，detection rate of dispensing error ，external error and timeliness of finished infusion batch were compared before （Mar.-May，2019，n＝83 006）and after （Jun.-Aug.，2019， n＝83 173）management. The effects of weighting recheck management were evaluated. RESULTS ：Compared with before the implementation of weighting recheck management ，there were no significant differences in the average daily check quantity of finished products ，the detection rate of dispensing errors caused by wrong labeling of liquid ，or the times of delayed drug delivery batches after the implementation of weighting recheck management （P＞0.05）. The checking time of finished products ，average checking time of finished products per bag ，the number of bags added or subtracted error ，detection rate of dose dispensing error ， total error detection rate prolonged or increased significantly （P＜0.05），and the number of external error was decreased significantly（P＜0.05）. CONCLUSIONS ：The weighting recheck management improves the accuracy and safety of PIVAS preparation，effectively improves error detection rate ，reduces the occurrence of external error ，but prolongs the time of checking ， which are urgent to be solved by information and automation means.