A medical control system (100, 100a) comprising: a first controller (40, 40a) and a second controller (60, 60a) each of which is configured to control different peripheral equipment (51, 52, 53, 54, 71, 72, 73, 74); a touch panel operation unit configured to receive an operation directed to processing performed at the first controller and the second controller; a switching unit (30, 31) configured to selectively switch a connection state between a first state in which the first controller receives an operation from the touch panel operation unit and a second state in which the second controller receives an operation from the touch panel operation unit; wherein the touch panel operation unit has a touch signal transmission unit configured to transmit a touch signal to the first controller when the connection state is the first state and the touch panel operation unit is touched, and the first controller has a first operation command transmission unit configured to transmit an operation command to the peripheral equipment on a regular basis, the operation command being a command in which an operation content of the peripheral equipment is specified by the received touch signal, a first connection state detection unit configured to detect, according to the connection state reported from the switching unit and the touch signal transmitted from the touch panel unit, a change of a connection state from the first state to the second state by the switching unit during a time period that the touch panel operation unit is being touched, and a first control unit configured to stop a regular transmission of the operation command in accordance with a detection result of the first connection state detection unit. a first controller (40, 40a) and a second controller (60, 60a) each of which is configured to control different peripheral equipment (51, 52, 53, 54, 71, 72, 73, 74); a touch panel operation unit configured to receive an operation directed to processing performed at the first controller and the second controller; a switching unit (30, 31) configured to selectively switch a connection state between a first state in which the first controller receives an operation from the touch panel operation unit and a second state in which the second controller receives an operation from the touch panel operation unit; wherein the touch panel operation unit has a touch signal transmission unit configured to transmit a touch signal to the first controller when the connection state is the first state and the touch panel operation unit is touched, and the first controller has a first operation command transmission unit configured to transmit an operation command to the peripheral equipment on a regular basis, the operation command being a command in which an operation content of the peripheral equipment is specified by the received touch signal, a first connection state detection unit configured to detect, according to the connection state reported from the switching unit and the touch signal transmitted from the touch panel unit, a change of a connection state from the first state to the second state by the switching unit during a time period that the touch panel operation unit is being touched, and a first control unit configured to stop a regular transmission of the operation command in accordance with a detection result of the first connection state detection unit.