Provided is an automatic operation assistance system comprising: a telematics center (1) that gives notification to a connected car (2) in accordance with a request that originated from the connected car (2), the notification pertaining to the traveling environment of the connected car (2) from which the request originated and a sensor evaluation value matching an external field sensor (22a); and the connected car (2) that changes, on the basis of the sensor evaluation value notified from the telematics center (1), a process for reflecting recognition data of each external field sensor (22a) of the connected car on an automatic operation control of the connected car.