To provide a controller (1) and a massage machine with good operability for users and can easily achieve the expected treatment. A massage machine (100) having treatment tools for treating prescribed locations of a human body, which includes: a touch panel (10) composed of a display device (20) for displaying a treatment menu and other selection items and an operation device (30) for selecting and operating the selection items, and a memory device (40) for storing display information related to selection items displayed on the touch panel (10); wherein at least a portion of the display information is standard display information relating to a standard mode for displaying a plurality of action selection items on the display means, and simple display information relating to a simple mode with fewer action selection items compared to the standard mode, and a mode switching processing unit (51) for switching between the standard mode and the simple mode.