The present invention relates to a self-moving robot system, which comprises a signal generating device configured to generate a preset signal； a signal detecting device, configured to detect the present signal and generate a detection result； a signal line configured to radiate or/and receive the preset signal； and a control unit disposed on a self-moving robot, wherein the control unit receives the detection result and controls the self-moving robot to move according to the detection result； one end of the signal line is connected to the signal generating device or/and the signal detecting device； the signal line unidirectionally extends from the end, and the signal line does not constitute a circuitry loop. The present invention can realize judging a working area and/or guiding returning of the self-moving robot by a non-closed signal line, such that an operation of arranging the border line or guide line by a user is simplified, and an experience feel of the user who uses the self-moving robot is improved.
