In a medical pump system including a plurality of medical pumps mounted in a rack, the rack determines whether it has received a start notification indicating the start of setting operation or an end notification indicating the end of setting operation from one of the mounted medical pumps via a communication unit for communicating with the plurality of mounted medical pumps. Upon receiving a start notification from one medical pump, the rack transmits an inhibition instruction to inhibit the acceptance of user operation to all remaining medical pumps via the communication unit. Upon receiving an end notification from one medical pump, the rack transmits a cancellation instruction to cancel the inhibition state based on the inhibition instruction to all the remaining medical pumps. Each of the plurality of medical pumps mounted in the rack inhibits the acceptance of user operation in an interval between reception of start instruction and reception of a cancellation instruction.
