Abstract: The present disclosure relates to an object tracking system having improved efficiency, as an object tracking system for emitting light pulses to an external tracking object including an optical sensor, the object tracking system comprising: one or more optical transmitting units configured to transmit an externally swept optical pulse; and a driving unit for adjusting an optical path of the light transmitting units, wherein the driving unit adjusts light emitted from the light transmitting units to be reciprocally swept within a predetermined angle range.