PROBLEM TO BE SOLVED: To provide a blood purification system capable of easily setting and changing a schedule for an automatic operation in an interlocking device.SOLUTION: The blood purification system includes: a plurality of monitoring devices 1 to which a dialyzer 5 for executing blood purification treatment to a patient is attached and a dialysate supply device 2 capable of supplying dialysate to each of the monitoring devices 1. Furthermore, the blood purification system includes a plurality of interlocking devices related to a process of producing the dialysate or a dialysate stock solution or a process of performing washing or disinfection, and allows the automatic operation of automatically producing the dialysate or the dialysate stock solution or automatically performing washing or disinfection by interlocking the plurality of interlocking devices with each other according to a preset schedule. In the blood purification system, the plurality of interlocking devices are made communicable with each other, and by an operation to any one interlocking device of the plurality of interlocking devices, the schedule can be set or changed.
