Abstract: Disclosed is a mobile robot. The mobile robot including a programmable input module includes a processor controlling the mobile robot, an input module receiving a command for programming the mobile robot from a user, a sensor module sensing an ambient change of the mobile robot, and an operation module operating depending on the action command input from the input module when the processor executes a command sequence including a command input from the input module. The control command includes a repeat command, and the processor repeats the execution of the action command input from the input module before the repeat command is input.