The utility model provides a medical insurance cost prevents refusing to pay supplementary management information system, including hospital's medical insurance information service ware and medical insurance cost inquiry machine, hospital's medical insurance information service ware includes medical insurance catalog data base and treater for carry out the analysis to patient's medical insurance consumption information, exceed standard message routing with patient's medical insurance consumption simultaneously and give relevant doctor, medical insurance cost inquiry machine includes that casing, touch screen display show ware and base, inside microcontroller, memory and the requestor of being equipped with of casing. The utility model provides a medical insurance cost prevents refusing to pay supplementary management system can inform the patient with the relevant information of medical insurance consumption on the one hand, ensures doctors and patients both sides' information symmetry, and on the other hand can prescribe to the doctor and inspect the analysis, if existing problems accessible time inform the doctor to change. Through above design, the problem that doctors and patients both sides exist has been improved in the aspect of information transparency and symmetry etc to the probability of patient's expense of refusing to pay has effectively been reduced.