Abstract: A monitoring control device according to an embodiment includes a host-side storage unit and a host-side processor. The host-side storage unit is configured to store an HMI program configured to generate a monitoring operation screen, host-side remote monitoring software configured to establish connection between an own device and a client PC according to a remote desktop protocol and send the monitoring operation screen to the client PC, and a key code. The host-side processor is configured to execute the host-side remote monitoring software and the HMI program. The host-side remote monitoring software is configured to virtualize a dongle connected to the client PC, as a dongle connected to the monitoring control device. The HMI program is configured to end execution of the HMI program if the key code stored in the virtualized dongle does not match with the key code stored in the host-side storage unit.