Provided is an operation input device for inputting an operation command to a medical manipulator having a distal-end-side moving portion having at least one joint on a distal end and a proximal-end-side moving portion that is connected to a proximal-end side of the distal-end-side moving portion and moves the distal-end-side moving portion, and the operation input device includes a first operation portion that generates a moving command for driving the distal-end-side moving portion in accordance with an operation command input with a palm or a finger and a second operation portion that is linked to the first operation portion and generates the moving command for driving the proximal-end-side moving portion in accordance with an operation command input with a wrist or an arm.