A docking system includes: a station including: a light emitter comprising light emitting elements arranged in a circular arc form so as to cause optical axes of light generated from the light emitting elements to pass through a curvature center of the circular arc; and a self-moving robot including: a body part having a circular arc part being substantially the same in curvature radius as the circular arc of the station; a movement mechanism attached to the body part to move the body part and capable of causing the body part to conduct on-the-spot rotation at a curvature center of the circular arc part; light receivers attached to the body part to receive a light signal from the light emitter; a direction detector detecting a direction in which the light signal is emitted; and a controller controlling the movement mechanism to move the body part in the direction detected by the direction detector.

 
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