An automatic driving system that enables a care receiver who moves using a traveling machine to move to a target location without receiving assistance from a caregiver or the like. The automatic traveling system controls support robot R to drive automatically to a target location in a care facility with a care receiver in a held state. Monitoring devices 31 detect obstacles 43 in multiple regions 41 set in residences 21 and so on. An area monitoring computer 33 is set to correspond to each of the multiple regions 41, and acquires obstacle information such as the position of obstacles 43 detected by the multiple monitoring devices 31. Area monitoring computer 33 calculates obstacle avoidance route 74 for support robot R to avoid obstacles 43 from obstacle information 72, and sends it to traveling support robot R. Support robot R drives automatically avoiding obstacles 43 while changing travel route 71 based on obstacle avoidance route 74.