To provide a portable patient order information confirmation device allowing a responsible person to appropriately confirm order information.

This portable patient order information confirmation device executes the following first and second steps. The first step includes that, when receiving the order information expressing instruction contents of a medical practice to a subject patient A-2 from a doctor, this device displays the order information on a display part, allows the responsible person A-1 carrying this portable type patient order information confirmation device to confirm the order information, and stores the order information in a memory as stored order information. The second step includes that the responsible person confirms the subject patient, the medical practice to be performed, and execution time of performing the medical practice in the order information, and when receiving execution result information input by the responsible person and expressing when the medical practice is performed on the subject patient in performing the medical practice on the subject patient, this device transmits the execution result information to a host computer.