OBJECTIVE： To improve the drug turnover rate and the work efficiency of drug storehouse， and to reduce the cost of drug storage. METHODS： Based on ABC dynamic classification， original drug procurement management module in HIS was improved. Scientific， accurate and reasonable drug procurement plan was generated by the system automatically through setting procurement proportion coefficient. Drug procurement by type was achieved through adding classification scanning function， based on distribution mode and drug property classification. Related index were compared before and after improvement to evaluate the effects of the improvement. RESULTS： Compared with before improvement， average monthly inventory amount of drugs in our hospital reduced by 6.44％， turnover rate increased by 47.13％ （increasing from 4.18％ to 6.15％）， and the time for developing procurement plan decreased by 75.00％ （decreasing from 8 h to 2 h）. CONCLUSIONS： The improvement of drug procurement management module effectively reduce drug inventory and improve turnover rate of drugs and work efficiency.