Making the antibiogram necessary for infectious disease treatment is an important operation of the microbiology laboratory. Antibiogram is required to be up-to-date and to keep up with the annual updates of the ClinicalLaboratory Standards Institute (CLSI). However, these operation and managements require a lot of effort. In addition, even in the surveillance and analysis comparison of multiple facilities, the difference in CLSI base year becomes a barrier, making unified analysis difficult. On the other hand the antibiogram by Japan Nosocomial Infections Surveillance (JANIS) has restrictions on the bacterial species, antibacterial agents, and date range. Accordingly we focused on the fact that the data transmitted to JANIS is in a common format, and attempt construction a system to making the antibiogram based on this. This system uses data transmitted to JANIS, is convenient, can use not only the latest but also past base year CLSI category, has no restrictions on bacterial species, antibacterial agents, date range, works on Microsoft Windows environment, pursuit of compliance with the guidelines, and automatically making the antibiogram.